Split config sub menu into separate context and fix configure button, prevent infinite loop when looking for autofocus element

src/ui/elements/ui_button.cpp

@@ -19,6 +19,7 @@ namespace recompui {
         set_font_weight(700);
         set_cursor(Cursor::Pointer);
         set_color(Color{ 204, 204, 204, 255 });
+        set_tab_index(TabIndex::Auto);
         hover_style.set_color(Color{ 242, 242, 242, 255 });
 
         const uint8_t border_opacity = 204;