Make `EditorProperty` and its child EditorProperties behave more like sibling nodes

Let `EditorProperty::gui_input()` no longer handle mouse events that
occur in the child EditorProperty rect.

editor/editor_inspector.cpp

@@ -918,6 +918,9 @@ void EditorProperty::gui_input(const Ref<InputEvent> &p_event) {
 
 	if (me.is_valid()) {
 		Vector2 mpos = me->get_position();
+		if (bottom_child_rect.has_point(mpos)) {
+			return; // Makes child EditorProperties behave like sibling nodes when handling mouse events.
+		}
 		if (is_layout_rtl()) {
 			mpos.x = get_size().x - mpos.x;
 		}
@@ -2715,8 +2718,6 @@ VBoxContainer *EditorInspectorArray::get_vbox(int p_index) {
 EditorInspectorArray::EditorInspectorArray(bool p_read_only) {
 	read_only = p_read_only;
 
-	set_mouse_filter(Control::MOUSE_FILTER_STOP);
-
 	odd_style.instantiate();
 	even_style.instantiate();
 

editor/editor_properties.cpp

@@ -3303,11 +3303,11 @@ void EditorPropertyResource::update_property() {
 				sub_inspector->set_use_folding(is_using_folding());
 
 				sub_inspector->set_draw_focus_border(false);
+				sub_inspector->set_focus_mode(FocusMode::FOCUS_NONE);
 
 				sub_inspector->set_use_filter(use_filter);
 				sub_inspector->register_text_enter(parent_inspector->search_box);
 
-				sub_inspector->set_mouse_filter(MOUSE_FILTER_STOP);
 				add_child(sub_inspector);
 				set_bottom_editor(sub_inspector);
 

editor/editor_properties_array_dict.cpp

@@ -430,7 +430,6 @@ void EditorPropertyArray::update_property() {
 
 		if (!container) {
 			container = memnew(PanelContainer);
-			container->set_mouse_filter(MOUSE_FILTER_STOP);
 			add_child(container);
 			set_bottom_editor(container);
 
@@ -1208,7 +1207,6 @@ void EditorPropertyDictionary::update_property() {
 
 		if (!container) {
 			container = memnew(PanelContainer);
-			container->set_mouse_filter(MOUSE_FILTER_STOP);
 			add_child(container);
 			set_bottom_editor(container);