game-details: Add remove shortcut

cartridges/ui/game-details.blp

@@ -8,6 +8,13 @@ template $GameDetails: Adw.NavigationPage {
   title: bind $_or(template.game as <$Game>.name, _("Add Game")) as <string>;
   hidden => $_exit();
 
+  ShortcutController {
+    Shortcut {
+      trigger: "Delete|KP_Delete";
+      action: "action(details.remove)";
+    }
+  }
+
   child: Adw.BreakpointBin {
     width-request: bind template.root as <Widget>.width-request;
     height-request: bind template.root as <Widget>.height-request;
@@ -177,11 +184,10 @@ template $GameDetails: Adw.NavigationPage {
                       }
 
                       Button {
-                        action-name: "game.remove";
+                        action-name: "details.remove";
                         icon-name: "user-trash-symbolic";
                         tooltip-text: _("Remove");
                         valign: center;
-                        clicked => $_pop();
 
                         styles [
                           "circular",

cartridges/ui/game_details.py

@@ -55,6 +55,7 @@ class GameDetails(Adw.NavigationPage):
         self.insert_action_group("details", group := Gio.SimpleActionGroup())
         group.add_action_entries((
             ("edit", lambda *_: self.edit()),
+            ("remove", lambda *_: self._remove()),
             (
                 "search-on",
                 lambda _action, param, *_: Gio.AppInfo.launch_default_for_uri(
@@ -113,6 +114,10 @@ class GameDetails(Adw.NavigationPage):
     def _activate_apply(self, _entry):
         self.activate_action("details.apply")
 
+    def _remove(self):
+        self.game.removed = True
+        self.activate_action("navigation.pop")
+
     @Gtk.Template.Callback()
     def _or(self, _obj, first: _T, second: _T) -> _T:
         return first or second
@@ -160,10 +165,6 @@ class GameDetails(Adw.NavigationPage):
     def _bool(self, _obj, o: object) -> bool:
         return bool(o)
 
-    @Gtk.Template.Callback()
-    def _pop(self, _obj):
-        self.activate_action("navigation.pop")
-
     @Gtk.Template.Callback()
     def _format_more_info(self, _obj, label: str) -> str:
         executable = _("program")