This is a follow-up for #1016
Still doesn't affect anything at the moment, but this reduce the amount of work needed when we yank out the homepages from our bundle later.
## Issues
1. We were manually adding `selectLanguage(state)` as a prop to components used in Settings Page to trigger a render. Flaws:
- Unclear that the unused prop is just to trigger a render.
- Manually adding on a case-by-case basis will break over time, especially when language can now be changed outside of the Settings Page.
2. The translation file fetching is delayed and also takes time, so the GUI will end up having mixed strings on F5, depending on when the fetch completed.
## Approach
Make the app wrapper have a key that's tied to the language and translation data, so the entire app renders when language changes. Seems like a common design in most apps.
## Ticket
921 language refresh / selection issues
## Why
- No memo required (no transformation).
- `makeSelect*` is an incorrect pattern.
## Changes
- Replaced makeSelectClientSetting with selectClientSetting.
- Remove unused selectShowRepostedContent.
Placed settings that we allow for unauthenticated users under <SettingUnauthenticated>. While it is redundant, it's easier to handle the grouping, and more readable overall.
