fix: Remove vite-plugin-pwa, avoid this plugin caches files unexpectedly (#6907)

Also fixed webpush wrong msg

Co-authored-by: Louis Lam <louislam@users.noreply.github.com>

package.json

@@ -95,8 +95,8 @@
         "express-static-gzip": "~2.1.7",
         "feed": "^4.2.2",
         "form-data": "~4.0.0",
-        "globalping": "^0.2.0",
         "gamedig": "^5.0.1",
+        "globalping": "^0.2.0",
         "html-escaper": "^3.0.3",
         "http-cookie-agent": "~5.0.4",
         "http-graceful-shutdown": "~3.1.7",
@@ -211,7 +211,6 @@
         "v-pagination-3": "~0.1.7",
         "vite": "~5.4.15",
         "vite-plugin-compression": "^0.5.1",
-        "vite-plugin-pwa": "^1.1.0",
         "vue": "~3.5.26",
         "vue-chartjs": "~5.2.0",
         "vue-confirm-dialog": "~1.0.2",