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>

app/notification_test.go

@@ -50,7 +50,7 @@ func TestSendNotifications(t *testing.T) {
 
 	_, appErr = th.App.UpdateActive(th.BasicUser2, false)
 	require.Nil(t, appErr)
-	appErr = th.App.InvalidateAllCaches()
+	appErr = th.App.Srv().InvalidateAllCaches()
 	require.Nil(t, appErr)
 
 	post3, appErr := th.App.CreatePostMissingChannel(&model.Post{
@@ -1004,7 +1004,7 @@ func TestAllowGroupMentions(t *testing.T) {
 		assert.False(t, allowGroupMentions)
 	})
 
-	th.App.SetLicense(model.NewTestLicense("ldap_groups"))
+	th.App.Srv().SetLicense(model.NewTestLicense("ldap_groups"))
 
 	t.Run("should return true for a regular post with few channel members", func(t *testing.T) {
 		allowGroupMentions := th.App.allowGroupMentions(post)