Fixed issue #2241 GO team page title shows tabs.undefined

Describe your changes

Changed default behavior when tab is null or characterKey is null.

When characterKey is null (when on team settings page), formatted as "\<Team Name> - Team Settings - Genshin Optimizer". Note that tab will always be null in this case.

When characterKey is not null and tab is null, this means that we're on the "Loadout/Build" tab, so formatted appropriately.

Do note that there's another issue with the Artifact Upgrader tab, where it doesn't display properly, but I'm not familiar enough with the codebase to fix this.

Issue or discord link

Fix https://github.com/frzyc/genshin-optimizer/issues/2241

Testing/validation

Two of the fixed pages, and the one that's still broken, I can make another issue for that one.

Checklist before requesting a review (leave this PR as draft if any part of this list is not done.)

[x] I have commented my code in hard-to understand areas.
[x] I have made corresponding changes to README or wiki.
[x] For front-end changes, I have updated the corresponding English translations.
[x] I have run yarn run mini-ci locally to validate format and lint.
[x] If I have added a new library or app, I have updated the deployment scripts to ignore changes as needed

frzyc / genshin-optimizer