feat(settings,docs): vault subpath becomes the chats folder, panel screenshots in the readme

preview/entry.ts

@@ -54,11 +54,11 @@ async function main(): Promise<void> {
   mount(App, {
     props: {
       app: app as never,
+      chatsFolder: () => "💬 чаты",
       client: scene === "offline" ? null : client,
       component: new Component() as never,
       onOpenSettings: () => console.log("settings"),
       state,
-      vaultSubpath: () => "💬 чаты",
     },
     target: document.getElementById("app") as HTMLElement,
   });