move shim to new package

packages/shim/src/electron/remote/system-preferences.js

@@ -0,0 +1,21 @@
+export const systemPreferencesShim = {
+  getAccentColor() {
+    return "0078d4"; // Default Windows accent blue
+  },
+
+  isAeroGlassEnabled() {
+    return false;
+  },
+
+  getMediaAccessStatus(mediaType) {
+    return "granted";
+  },
+
+  askForMediaAccess(mediaType) {
+    return Promise.resolve(true);
+  },
+
+  on() {},
+  once() {},
+  removeListener() {},
+};