feat: setting to let the hover side menu push content again

src/ui/sidebar/rail-preferences.ts

@@ -1,14 +1,23 @@
 import { getUserPreferences, saveUserPreferences } from "@/api/open-tabs-api";
 
 export type RailPreference =
-  "pinAppRail" | "expandAppRailOnHover" | "showPinAppRailButton";
+  | "pinAppRail"
+  | "expandAppRailOnHover"
+  | "showPinAppRailButton"
+  | "appRailHoverPushesContent";
 
 const CHANGE_EVENT: Record<RailPreference, string> = {
   pinAppRail: "pinAppRailChanged",
   expandAppRailOnHover: "expandAppRailOnHoverChanged",
   showPinAppRailButton: "showPinAppRailButtonChanged",
+  appRailHoverPushesContent: "appRailHoverPushesContentChanged",
 };
 
+/** Kept on this device only; the server has no column for it. */
+const LOCAL_ONLY: ReadonlySet<RailPreference> = new Set([
+  "appRailHoverPushesContent",
+]);
+
 // pinAppRail and showPinAppRailButton default off, expandAppRailOnHover
 // defaults on, so each key needs its own read rather than a shared
 // === "true" check.
@@ -28,6 +37,7 @@ export function readRailPreference(key: RailPreference): boolean {
 export function setRailPreference(key: RailPreference, value: boolean): void {
   localStorage.setItem(key, String(value));
   window.dispatchEvent(new Event(CHANGE_EVENT[key]));
+  if (LOCAL_ONLY.has(key)) return;
   void getUserPreferences()
     .then((preferences) => {
       if (preferences.storageMode === "cloud") {