Add "Suggest a Feature" to the help dialog.

Links to Godot Proposals's readme.

(cherry picked from commit 70fb239a25760009d40bf15d8a47082a876dbe9f)

editor/editor_node.cpp

@@ -609,6 +609,7 @@ void EditorNode::_notification(int p_what) {
 			p->set_item_icon(p->get_item_index(HELP_DOCS), gui_base->get_icon("Instance", "EditorIcons"));
 			p->set_item_icon(p->get_item_index(HELP_QA), gui_base->get_icon("Instance", "EditorIcons"));
 			p->set_item_icon(p->get_item_index(HELP_REPORT_A_BUG), gui_base->get_icon("Instance", "EditorIcons"));
+			p->set_item_icon(p->get_item_index(HELP_SUGGEST_A_FEATURE), gui_base->get_icon("Instance", "EditorIcons"));
 			p->set_item_icon(p->get_item_index(HELP_SEND_DOCS_FEEDBACK), gui_base->get_icon("Instance", "EditorIcons"));
 			p->set_item_icon(p->get_item_index(HELP_COMMUNITY), gui_base->get_icon("Instance", "EditorIcons"));
 			p->set_item_icon(p->get_item_index(HELP_ABOUT), gui_base->get_icon("Godot", "EditorIcons"));
@@ -2803,6 +2804,9 @@ void EditorNode::_menu_option_confirm(int p_option, bool p_confirmed) {
 		case HELP_REPORT_A_BUG: {
 			OS::get_singleton()->shell_open("https://github.com/godotengine/godot/issues");
 		} break;
+		case HELP_SUGGEST_A_FEATURE: {
+			OS::get_singleton()->shell_open("https://github.com/godotengine/godot-proposals#readme");
+		} break;
 		case HELP_SEND_DOCS_FEEDBACK: {
 			OS::get_singleton()->shell_open("https://github.com/godotengine/godot-docs/issues");
 		} break;
@@ -6364,6 +6368,7 @@ EditorNode::EditorNode() {
 	p->add_icon_shortcut(gui_base->get_icon("Instance", "EditorIcons"), ED_SHORTCUT("editor/online_docs", TTR("Online Documentation")), HELP_DOCS);
 	p->add_icon_shortcut(gui_base->get_icon("Instance", "EditorIcons"), ED_SHORTCUT("editor/q&a", TTR("Questions & Answers")), HELP_QA);
 	p->add_icon_shortcut(gui_base->get_icon("Instance", "EditorIcons"), ED_SHORTCUT("editor/report_a_bug", TTR("Report a Bug")), HELP_REPORT_A_BUG);
+	p->add_icon_shortcut(gui_base->get_icon("Instance", "EditorIcons"), ED_SHORTCUT("editor/suggest_a_feature", TTR("Suggest a Feature")), HELP_SUGGEST_A_FEATURE);
 	p->add_icon_shortcut(gui_base->get_icon("Instance", "EditorIcons"), ED_SHORTCUT("editor/send_docs_feedback", TTR("Send Docs Feedback")), HELP_SEND_DOCS_FEEDBACK);
 	p->add_icon_shortcut(gui_base->get_icon("Instance", "EditorIcons"), ED_SHORTCUT("editor/community", TTR("Community")), HELP_COMMUNITY);
 	p->add_separator();

editor/editor_node.h

@@ -200,6 +200,7 @@ private:
 		HELP_DOCS,
 		HELP_QA,
 		HELP_REPORT_A_BUG,
+		HELP_SUGGEST_A_FEATURE,
 		HELP_SEND_DOCS_FEEDBACK,
 		HELP_COMMUNITY,
 		HELP_ABOUT,