Auto merge of #11735 - mrmiywj:reload-page-shortcut, r=jdm

add reload keyboard shortcut

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- [X] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors
- [X] These changes fix #11686  (github issue number if applicable).

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ports/glutin/window.rs

@@ -822,7 +822,7 @@ impl WindowMethods for Window {
             }
 
             (NONE, Key::Escape) => {
-                if let Some(true) = prefs::get_pref("shell.quit-on-escape.enabled").as_boolean() {
+                if let Some(true) = prefs::get_pref("shell.builtin-key-shortcuts.enabled").as_boolean() {
                     self.event_queue.borrow_mut().push(WindowEvent::Quit);
                 }
             }
@@ -864,6 +864,11 @@ impl WindowMethods for Window {
             (NONE, Key::Right) => {
                 self.scroll_window(-LINE_HEIGHT, 0.0, TouchEventType::Move);
             }
+            (CMD_OR_CONTROL, Key::R) => {
+                if let Some(true) = prefs::get_pref("shell.builtin-key-shortcuts.enabled").as_boolean() {
+                    self.event_queue.borrow_mut().push(WindowEvent::Reload);
+                }
+            }
 
             _ => {
                 self.platform_handle_key(key, mods);