feat: add manifest.json for pwa (#144)

* chore: update `i18nStore`

* feat: add pwa `manifest.json`

web/public/manifest.json

@@ -0,0 +1,18 @@
+{
+    "short_name": "Memos",
+    "name": "Memos",
+    "icons": [
+      {
+        "src": "/logo.png",
+        "type": "image/png",
+        "sizes": "200x200"
+      }
+    ],
+    "start_url": "/",
+    "background_color": "#f6f5f4",
+    "display": "standalone",
+    "scope": "/",
+    "theme_color": "#f6f5f4",
+    "description": "usememos/memos"
+  }
+  

web/public/sw.js

@@ -0,0 +1,10 @@
+self.addEventListener("install", (event) => {
+    event.waitUntil((async () => {})());
+  });
+  
+  self.addEventListener("activate", (event) => {
+    event.waitUntil((async () => {})());
+  });
+  
+  self.addEventListener("fetch", (event) => {});
+