fix(deps): update mantine monorepo to ^7.15.0 (#1636)

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

packages/notifications/package.json

@@ -24,7 +24,7 @@
   "prettier": "@homarr/prettier-config",
   "dependencies": {
     "@homarr/ui": "workspace:^0.1.0",
-    "@mantine/notifications": "^7.14.3",
+    "@mantine/notifications": "^7.15.0",
     "@tabler/icons-react": "^3.24.0"
   },
   "devDependencies": {