Removing all FakeApp usages (#14174)

* Removing some other fake apps

* More FakeApp removed

* Removing entirely FakeApp

* Fixing some tests

* Fixing get Cluster id from get plugin status

* Fixing failing tests

* Fixing tests

* Fixing test initialization for web

* Fixing InitServer for server tests

* Fixing InitServer for server tests

* Reverting go.sum and go.mod

* Removing unneded HTMLTemplates function in App layer

* Moving back some functions to its old place to easy the review

* Moving back some functions to its old place to easy the review

* Using the last struct2interface version

* Generating store layers

* Fixing merge problems

* Addressing PR comments

* Small fix

* Fixing app tests build

* Fixing tests

* fixing tests

* Fix tests

* Fixing tests

* Fixing tests

* Fixing tests

* Moving license to server struct

* Adding some fixes to the test compilation

* Fixing cluster and some jobs initialization

* Fixing some license tests compilation problems

* Fixing recursive cache invalidation

* Regenerating app layers

* Fix test compilation

Co-authored-by: mattermod <mattermod@users.noreply.github.com>

api4/channel.go

@@ -1546,7 +1546,7 @@ func updateChannelScheme(c *Context, w http.ResponseWriter, r *http.Request) {
 	defer c.LogAuditRec(auditRec)
 	auditRec.AddMeta("new_scheme_id", schemeID)
 
-	if c.App.License() == nil {
+	if c.App.Srv().License() == nil {
 		c.Err = model.NewAppError("Api4.UpdateChannelScheme", "api.channel.update_channel_scheme.license.error", nil, "", http.StatusNotImplemented)
 		return
 	}
@@ -1640,7 +1640,7 @@ func channelMembersMinusGroupMembers(c *Context, w http.ResponseWriter, r *http.
 }
 
 func channelMemberCountsByGroup(c *Context, w http.ResponseWriter, r *http.Request) {
-	if c.App.License() == nil {
+	if c.App.Srv().License() == nil {
 		c.Err = model.NewAppError("Api4.channelMemberCountsByGroup", "api.channel.channel_member_counts_by_group.license.error", nil, "", http.StatusNotImplemented)
 		return
 	}
@@ -1673,7 +1673,7 @@ func channelMemberCountsByGroup(c *Context, w http.ResponseWriter, r *http.Reque
 }
 
 func getChannelModerations(c *Context, w http.ResponseWriter, r *http.Request) {
-	if c.App.License() == nil {
+	if c.App.Srv().License() == nil {
 		c.Err = model.NewAppError("Api4.GetChannelModerations", "api.channel.get_channel_moderations.license.error", nil, "", http.StatusNotImplemented)
 		return
 	}
@@ -1710,7 +1710,7 @@ func getChannelModerations(c *Context, w http.ResponseWriter, r *http.Request) {
 }
 
 func patchChannelModerations(c *Context, w http.ResponseWriter, r *http.Request) {
-	if c.App.License() == nil {
+	if c.App.Srv().License() == nil {
 		c.Err = model.NewAppError("Api4.patchChannelModerations", "api.channel.patch_channel_moderations.license.error", nil, "", http.StatusNotImplemented)
 		return
 	}