Plugin API hook for Shared Channel file attachment sync (#25874)

* option for auto inviting plugin to all shared channels.

* auto-invite remotes to shared channels when flag set

* fix unit test

* immediately ping new remotes; fix unique siteurl bug

* make i18n-extract

* fix translations

* plugin hooks for file attachments

* hook for profile image sync

* fix profile image sync

* fix unit test

---------

Co-authored-by: Mattermost Build <build@mattermost.com>

server/public/plugin/plugintest/hooks.go

@@ -311,6 +311,20 @@ func (_m *Hooks) OnSendDailyTelemetry() {
 	_m.Called()
 }
 
+// OnSharedChannelsAttachmentSyncMsg provides a mock function with given fields: fi, post, rc
+func (_m *Hooks) OnSharedChannelsAttachmentSyncMsg(fi *model.FileInfo, post *model.Post, rc *model.RemoteCluster) error {
+	ret := _m.Called(fi, post, rc)
+
+	var r0 error
+	if rf, ok := ret.Get(0).(func(*model.FileInfo, *model.Post, *model.RemoteCluster) error); ok {
+		r0 = rf(fi, post, rc)
+	} else {
+		r0 = ret.Error(0)
+	}
+
+	return r0
+}
+
 // OnSharedChannelsPing provides a mock function with given fields: rc
 func (_m *Hooks) OnSharedChannelsPing(rc *model.RemoteCluster) bool {
 	ret := _m.Called(rc)
@@ -325,6 +339,20 @@ func (_m *Hooks) OnSharedChannelsPing(rc *model.RemoteCluster) bool {
 	return r0
 }
 
+// OnSharedChannelsProfileImageSyncMsg provides a mock function with given fields: user, rc
+func (_m *Hooks) OnSharedChannelsProfileImageSyncMsg(user *model.User, rc *model.RemoteCluster) error {
+	ret := _m.Called(user, rc)
+
+	var r0 error
+	if rf, ok := ret.Get(0).(func(*model.User, *model.RemoteCluster) error); ok {
+		r0 = rf(user, rc)
+	} else {
+		r0 = ret.Error(0)
+	}
+
+	return r0
+}
+
 // OnSharedChannelsSyncMsg provides a mock function with given fields: msg, rc
 func (_m *Hooks) OnSharedChannelsSyncMsg(msg *model.SyncMsg, rc *model.RemoteCluster) (model.SyncResponse, error) {
 	ret := _m.Called(msg, rc)