MM-53032: Fix module path after repo rename (#23689)

It was a good decision in hindsight to keep the public module as 0.x
because this would have been a breaking change again.

https://mattermost.atlassian.net/browse/MM-53032
```release-note
Changed the Go module path from github.com/mattermost/mattermost-server/server/v8 to github.com/mattermost/mattermost/server/v8.

For the public facing module, it's path is also changed from github.com/mattermost/mattermost-server/server/public to github.com/mattermost/mattermost/server/public
```

server/platform/services/searchengine/bleveengine/bleve.go

@@ -17,8 +17,8 @@ import (
 	"github.com/blevesearch/bleve/v2/analysis/analyzer/standard"
 	"github.com/blevesearch/bleve/v2/mapping"
 
-	"github.com/mattermost/mattermost-server/server/public/model"
-	"github.com/mattermost/mattermost-server/server/public/shared/mlog"
+	"github.com/mattermost/mattermost/server/public/model"
+	"github.com/mattermost/mattermost/server/public/shared/mlog"
 )
 
 const (

server/platform/services/searchengine/bleveengine/bleve_test.go

@@ -11,13 +11,13 @@ import (
 	"github.com/stretchr/testify/require"
 	"github.com/stretchr/testify/suite"
 
-	"github.com/mattermost/mattermost-server/server/public/model"
-	"github.com/mattermost/mattermost-server/server/v8/channels/store/searchlayer"
-	"github.com/mattermost/mattermost-server/server/v8/channels/store/searchtest"
-	"github.com/mattermost/mattermost-server/server/v8/channels/store/sqlstore"
-	"github.com/mattermost/mattermost-server/server/v8/channels/store/storetest"
-	"github.com/mattermost/mattermost-server/server/v8/channels/testlib"
-	"github.com/mattermost/mattermost-server/server/v8/platform/services/searchengine"
+	"github.com/mattermost/mattermost/server/public/model"
+	"github.com/mattermost/mattermost/server/v8/channels/store/searchlayer"
+	"github.com/mattermost/mattermost/server/v8/channels/store/searchtest"
+	"github.com/mattermost/mattermost/server/v8/channels/store/sqlstore"
+	"github.com/mattermost/mattermost/server/v8/channels/store/storetest"
+	"github.com/mattermost/mattermost/server/v8/channels/testlib"
+	"github.com/mattermost/mattermost/server/v8/platform/services/searchengine"
 )
 
 type BleveEngineTestSuite struct {

server/platform/services/searchengine/bleveengine/common.go

@@ -6,8 +6,8 @@ package bleveengine
 import (
 	"strings"
 
-	"github.com/mattermost/mattermost-server/server/public/model"
-	"github.com/mattermost/mattermost-server/server/v8/platform/services/searchengine"
+	"github.com/mattermost/mattermost/server/public/model"
+	"github.com/mattermost/mattermost/server/v8/platform/services/searchengine"
 )
 
 type BLVChannel struct {

server/platform/services/searchengine/bleveengine/indexer/indexing_job.go

@@ -10,10 +10,10 @@ import (
 	"sync/atomic"
 	"time"
 
-	"github.com/mattermost/mattermost-server/server/public/model"
-	"github.com/mattermost/mattermost-server/server/public/shared/mlog"
-	"github.com/mattermost/mattermost-server/server/v8/channels/jobs"
-	"github.com/mattermost/mattermost-server/server/v8/platform/services/searchengine/bleveengine"
+	"github.com/mattermost/mattermost/server/public/model"
+	"github.com/mattermost/mattermost/server/public/shared/mlog"
+	"github.com/mattermost/mattermost/server/v8/channels/jobs"
+	"github.com/mattermost/mattermost/server/v8/platform/services/searchengine/bleveengine"
 )
 
 const (

server/platform/services/searchengine/bleveengine/indexer/indexing_job_test.go

@@ -10,11 +10,11 @@ import (
 
 	"github.com/stretchr/testify/require"
 
-	"github.com/mattermost/mattermost-server/server/public/model"
-	"github.com/mattermost/mattermost-server/server/v8/channels/jobs"
-	"github.com/mattermost/mattermost-server/server/v8/channels/store/storetest"
-	"github.com/mattermost/mattermost-server/server/v8/channels/utils/testutils"
-	"github.com/mattermost/mattermost-server/server/v8/platform/services/searchengine/bleveengine"
+	"github.com/mattermost/mattermost/server/public/model"
+	"github.com/mattermost/mattermost/server/v8/channels/jobs"
+	"github.com/mattermost/mattermost/server/v8/channels/store/storetest"
+	"github.com/mattermost/mattermost/server/v8/channels/utils/testutils"
+	"github.com/mattermost/mattermost/server/v8/platform/services/searchengine/bleveengine"
 )
 
 func TestBleveIndexer(t *testing.T) {

server/platform/services/searchengine/bleveengine/search.go

@@ -10,8 +10,8 @@ import (
 	"github.com/blevesearch/bleve/v2"
 	"github.com/blevesearch/bleve/v2/search/query"
 
-	"github.com/mattermost/mattermost-server/server/public/model"
-	"github.com/mattermost/mattermost-server/server/public/shared/mlog"
+	"github.com/mattermost/mattermost/server/public/model"
+	"github.com/mattermost/mattermost/server/public/shared/mlog"
 )
 
 const DeletePostsBatchSize = 500

server/platform/services/searchengine/bleveengine/testlib.go

@@ -6,7 +6,7 @@ package bleveengine
 import (
 	"fmt"
 
-	"github.com/mattermost/mattermost-server/server/public/model"
+	"github.com/mattermost/mattermost/server/public/model"
 )
 
 func createPost(userId string, channelId string) *model.Post {

server/platform/services/searchengine/interface.go

@@ -6,7 +6,7 @@ package searchengine
 import (
 	"time"
 
-	"github.com/mattermost/mattermost-server/server/public/model"
+	"github.com/mattermost/mattermost/server/public/model"
 )
 
 type SearchEngineInterface interface {

server/platform/services/searchengine/mocks/SearchEngineInterface.go

@@ -5,7 +5,7 @@
 package mocks
 
 import (
-	model "github.com/mattermost/mattermost-server/server/public/model"
+	model "github.com/mattermost/mattermost/server/public/model"
 	mock "github.com/stretchr/testify/mock"
 
 	time "time"

server/platform/services/searchengine/searchengine.go

@@ -4,7 +4,7 @@
 package searchengine
 
 import (
-	"github.com/mattermost/mattermost-server/server/public/model"
+	"github.com/mattermost/mattermost/server/public/model"
 )
 
 func NewBroker(cfg *model.Config) *Broker {

server/platform/services/searchengine/searchengine_test.go

@@ -6,8 +6,8 @@ package searchengine
 import (
 	"testing"
 
-	"github.com/mattermost/mattermost-server/server/public/model"
-	"github.com/mattermost/mattermost-server/server/v8/platform/services/searchengine/mocks"
+	"github.com/mattermost/mattermost/server/public/model"
+	"github.com/mattermost/mattermost/server/v8/platform/services/searchengine/mocks"
 	"github.com/stretchr/testify/assert"
 )
 

server/platform/services/searchengine/utils.go

@@ -7,7 +7,7 @@ import (
 	"regexp"
 	"strings"
 
-	"github.com/mattermost/mattermost-server/server/v8/channels/utils"
+	"github.com/mattermost/mattermost/server/v8/channels/utils"
 )
 
 var EmailRegex = regexp.MustCompile(`^[^\s"]+@[^\s"]+$`)