chore: Rewrite prefs in rust, p=(#9491), c=workflows, winsign

prefs/static.yaml

@@ -0,0 +1,16 @@
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+- name: zen.haptic-feedback.enabled
+  cpptype: bool
+  value: true
+  mirror: always
+  type: static
+
+- name: zen.swipe.is-fast-swipe
+  cpptype: bool
+  value: true
+  mirror: always
+  hidden: true
+  type: static