chore(deps): bump firebase from 7.7.0 to 7.8.0

Bumps [firebase](https://github.com/firebase/firebase-js-sdk) from 7.7.0 to 7.8.0.
- [Release notes](https://github.com/firebase/firebase-js-sdk/releases)
- [Commits](https://github.com/firebase/firebase-js-sdk/compare/firebase@7.7.0...firebase@7.8.0)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

package.json

@@ -26,7 +26,7 @@
         "@nuxtjs/sitemap": "^2.0.1",
         "@nuxtjs/toast": "^3.3.0",
         "ace-builds": "^1.4.8",
-        "firebase": "^7.7.0",
+        "firebase": "^7.8.0",
         "graphql": "^14.5.8",
         "nuxt": "^2.11.0",
         "nuxt-i18n": "^6.5.0",