fix(deps): update mantine monorepo to ^7.8.0 (#343)

Co-authored-by: homarr-renovate[bot] <158783068+homarr-renovate[bot]@users.noreply.github.com>

packages/notifications/package.json

@@ -28,7 +28,7 @@
     "typescript": "^5.4.5"
   },
   "dependencies": {
-    "@mantine/notifications": "^7.7.1",
+    "@mantine/notifications": "^7.8.0",
     "@homarr/ui": "workspace:^0.1.0"
   },
   "eslintConfig": {