chore: update dependencies and improve dashboard settings

- Updated Qwik and Qwik City to version 1.15.0
- Updated Tailwind CSS and related plugins to latest versions
- Added a new Settings component to manage user settings
- Integrated settings management into the OSBar component
- Improved file display in the dashboard with better responsiveness
- Enhanced error handling for user info fetching
- Removed unused id from Testimonials component

src/components/dashboard/Settings.tsx

@@ -0,0 +1,24 @@
+import { component$ } from "@builder.io/qwik";
+import { useNanostore$ } from "~/hooks/nanostores";
+import { isSettingsOpen, userInfo } from "~/lib/stores";
+import { StereoUser } from "~/lib/types";
+
+export default component$(() => {
+    const info = useNanostore$<StereoUser>(userInfo);
+    const open = useNanostore$<boolean>(isSettingsOpen);
+    if (open.value) return (
+        <div onClick$={() => open.value = false} class="z-[50] absolute flex w-full h-screen items-center justify-center backdrop-blur-3xl bg-black/50 text-white text-6xl">
+            <div onClick$={e => e.stopPropagation()} class="flex gap-8 bg-black/50 p-8 rounded-3xl shadow-lg w-4/7 h-4/7">
+                <div class="flex flex-col flex-1/4 border-r-2 border-white/25">
+                    <h1 class="text-2xl">settings</h1>
+                </div>
+
+                <div class="flex flex-col flex-3/4">
+                    <h1 class="text-2xl">content</h1>
+                </div>
+            </div>
+        </div>
+    ); else return (
+        <></>
+    );
+})