EventSource Refactor

Move showing th event source to a call to RoomManager. This means the SourceRole is no longer required in the message and search models

src/roommanager.h

@@ -195,6 +195,11 @@ public:
      */
     Q_INVOKABLE void maximizeMedia(int index);
 
+    /**
+     * @brief Show the JSON source for the given event Matrix ID
+     */
+    Q_INVOKABLE void viewEventSource(const QString &eventId);
+
     /**
      * @brief Call this when the current used connection is dropped.
      */
@@ -261,6 +266,11 @@ Q_SIGNALS:
      */
     void showMaximizedMedia(int index);
 
+    /**
+     * @brief Request the JSON source for the given event ID is shown.
+     */
+    void showEventSource(const QString &eventId);
+
     /**
      * @brief Show the direct chat confirmation dialog.
      *