added maximize panel and full screen viewer menu items

panels/panels.cpp

@@ -115,9 +115,9 @@ void update_ui(bool modified) {
 	panel_graph_editor->update_panel();
 }
 
-QDockWidget *get_focused_panel() {
+QDockWidget *get_focused_panel(bool force_hover) {
 	QDockWidget* w = nullptr;
-	if (config.hover_focus) {
+    if (config.hover_focus || force_hover) {
 		if (panel_project->underMouse()) {
 			w = panel_project;
 		} else if (panel_effect_controls->underMouse()) {

panels/panels.h

@@ -19,7 +19,7 @@ extern Timeline* panel_timeline;
 extern GraphEditor* panel_graph_editor;
 
 void update_ui(bool modified);
-QDockWidget* get_focused_panel();
+QDockWidget* get_focused_panel(bool force_hover = false);
 void alloc_panels(QWidget *parent);
 void free_panels();
 void scroll_to_frame_internal(QScrollBar* bar, long frame, double zoom, int area_width);