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/channels/utils/api.go

@@ -14,8 +14,8 @@ import (
 	"path"
 	"strings"
 
-	"github.com/mattermost/mattermost-server/server/public/model"
-	"github.com/mattermost/mattermost-server/server/public/shared/i18n"
+	"github.com/mattermost/mattermost/server/public/model"
+	"github.com/mattermost/mattermost/server/public/shared/i18n"
 )
 
 func CheckOrigin(r *http.Request, allowedOrigins string) bool {

server/channels/utils/api_test.go

@@ -19,7 +19,7 @@ import (
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
 
-	"github.com/mattermost/mattermost-server/server/public/model"
+	"github.com/mattermost/mattermost/server/public/model"
 )
 
 func TestRenderWebError(t *testing.T) {

server/channels/utils/archive_test.go

@@ -12,7 +12,7 @@ import (
 
 	"github.com/stretchr/testify/require"
 
-	"github.com/mattermost/mattermost-server/server/v8/channels/utils/fileutils"
+	"github.com/mattermost/mattermost/server/v8/channels/utils/fileutils"
 )
 
 func TestSanitizePath(t *testing.T) {

server/channels/utils/i18n.go

@@ -8,8 +8,8 @@ import (
 	"os"
 	"path/filepath"
 
-	"github.com/mattermost/mattermost-server/server/public/shared/i18n"
-	"github.com/mattermost/mattermost-server/server/v8/channels/utils/fileutils"
+	"github.com/mattermost/mattermost/server/public/shared/i18n"
+	"github.com/mattermost/mattermost/server/v8/channels/utils/fileutils"
 )
 
 // this functions loads translations from filesystem if they are not

server/channels/utils/imgutils/gif_test.go

@@ -12,7 +12,7 @@ import (
 	"path/filepath"
 	"testing"
 
-	"github.com/mattermost/mattermost-server/server/v8/channels/utils/fileutils"
+	"github.com/mattermost/mattermost/server/v8/channels/utils/fileutils"
 
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"

server/channels/utils/license.go

@@ -17,9 +17,9 @@ import (
 	"path/filepath"
 	"strconv"
 
-	"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/utils/fileutils"
+	"github.com/mattermost/mattermost/server/public/model"
+	"github.com/mattermost/mattermost/server/public/shared/mlog"
+	"github.com/mattermost/mattermost/server/v8/channels/utils/fileutils"
 )
 
 var LicenseValidator LicenseValidatorIface

server/channels/utils/license_test.go

@@ -9,7 +9,7 @@ import (
 	"os"
 	"testing"
 
-	"github.com/mattermost/mattermost-server/server/public/model"
+	"github.com/mattermost/mattermost/server/public/model"
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
 )

server/channels/utils/merge_test.go

@@ -11,7 +11,7 @@ import (
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
 
-	"github.com/mattermost/mattermost-server/server/v8/channels/utils"
+	"github.com/mattermost/mattermost/server/v8/channels/utils"
 )
 
 // Test merging maps alone. This isolates the complexity of merging maps from merging maps recursively in

server/channels/utils/mocks/LicenseValidatorIface.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"
 )
 

server/channels/utils/subpath.go

@@ -16,9 +16,9 @@ import (
 
 	"github.com/pkg/errors"
 
-	"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/utils/fileutils"
+	"github.com/mattermost/mattermost/server/public/model"
+	"github.com/mattermost/mattermost/server/public/shared/mlog"
+	"github.com/mattermost/mattermost/server/v8/channels/utils/fileutils"
 )
 
 // getSubpathScript renders the inline script that defines window.publicPath to change how webpack loads assets.

server/channels/utils/subpath_test.go

@@ -12,8 +12,8 @@ import (
 
 	"github.com/stretchr/testify/require"
 
-	"github.com/mattermost/mattermost-server/server/public/model"
-	"github.com/mattermost/mattermost-server/server/v8/channels/utils"
+	"github.com/mattermost/mattermost/server/public/model"
+	"github.com/mattermost/mattermost/server/v8/channels/utils"
 )
 
 func TestUpdateAssetsSubpathFromConfig(t *testing.T) {

server/channels/utils/testutils/static_config_service.go

@@ -6,7 +6,7 @@ package testutils
 import (
 	"crypto/ecdsa"
 
-	"github.com/mattermost/mattermost-server/server/public/model"
+	"github.com/mattermost/mattermost/server/public/model"
 )
 
 type StaticConfigService struct {

server/channels/utils/testutils/testutils.go

@@ -14,9 +14,9 @@ import (
 	"strconv"
 	"time"
 
-	"github.com/mattermost/mattermost-server/server/v8/channels/utils"
+	"github.com/mattermost/mattermost/server/v8/channels/utils"
 
-	"github.com/mattermost/mattermost-server/server/v8/channels/utils/fileutils"
+	"github.com/mattermost/mattermost/server/v8/channels/utils/fileutils"
 )
 
 func ReadTestFile(name string) ([]byte, error) {

server/channels/utils/utils.go

@@ -13,7 +13,7 @@ import (
 
 	"github.com/pkg/errors"
 
-	"github.com/mattermost/mattermost-server/server/public/model"
+	"github.com/mattermost/mattermost/server/public/model"
 )
 
 func StringInSlice(a string, slice []string) bool {