feat(pinned-tab-manager): Add restore pinned tabs to pinned url option

This commit introduces a new option to the pinned tab manager that allows users to restore pinned tabs to their pinned URL and title, even if the current tab has a different URL.

- Adds a new preference `zen.pinned-tab-manager.restore-pinned-tabs-to-pinned-url` to control this behavior.
- Updates the tab browser, tab state, and preferences code to support the new option.
- Adds a new UI element in the settings to allow users to enable/disable this feature.

This feature enhances the pinned tab manager by providing more control over how pinned tabs are restored when the browser is restarted.

src/browser/components/preferences/zen-settings.js

@@ -1025,4 +1025,9 @@ Preferences.addAll([
     type: 'bool',
     default: true,
   },
+  {
+    id: 'zen.pinned-tab-manager.restore-pinned-tabs-to-pinned-url',
+    type: 'bool',
+    default: true,
+  },
 ]);