feat: update dashboard to automatically switch to the current local day after midnight

Author: PythonSmall-Q

CHANGELOG.md

@@ -34,6 +34,7 @@ Format follows [Keep a Changelog](https://keepachangelog.com/en/1.1.0/).
 
 ### Fixed
 
+- **Dashboard day rollover** — the home dashboard now switches to the current local day automatically after midnight.
 - **Dashboard refresh flicker** — background statistics refreshes no longer insert a loading card after the initial load, preventing the main dashboard from visibly jumping during periodic updates.
 - **Main app skin visibility** — fixed opaque layout backgrounds covering the configured app background image.
 - **Skin reset appearance** — clearing a background image now removes its overlay and restores the original theme instead of leaving a gray veil.

src/pages/Dashboard/index.tsx

@@ -134,12 +134,18 @@ export default function Dashboard() {
 
   useEffect(() => {
     if (periodMode !== "day" || selectedDate !== todayString()) return;
+    const dateAtStart = selectedDate;
     const id = setInterval(() => {
+      const currentDate = todayString();
+      if (currentDate !== dateAtStart) {
+        setSelectedDate(currentDate);
+        return;
+      }
       void fetchToday();
       void fetchVsCodeStatsForRange(selectedDate, selectedDate);
     }, 10_000);
     return () => clearInterval(id);
-  }, [periodMode, selectedDate, fetchToday, fetchVsCodeStatsForRange]);
+  }, [periodMode, selectedDate, setSelectedDate, fetchToday, fetchVsCodeStatsForRange]);
 
   useEffect(() => {
     const end = todayString();