(1) This reverts commit 8641a3ee1c.
(2) Fix floating-player misalignment due to YT badge in mobile by hiding the badge.
At first, the suggestion to truncate the left URI to keep the entire thing single-lined was implemented, but during testing, I realized that the YT badge will take up the entire width anyway (especially on other languages). The URI is more important than the badge, and truncating both of them would be ugly.
Given the preference to not have 2 lines for this, we'll just hide the badge for the mobile case.
For the Channel Page case, let's make it single-line through "4454: URL / top claims overlap" instead. We'll keep this commit/PR limited to fixing the YT badge.
## Issue
Closes 3964 `Add Youtuber info to file page`
## Changes
(1) Refactor the YT-info query into `YoutubeBadge` component.
(2) For the File Page case, don't show "- last sync <date>" since the date has nothing to do with the file.
## Test
[x] YT Channel page
[x] YT Channel's claim page
[x] Non YT Channel page
[x] Non YT Channel's claim page
[x] No channel (anonymous) claim page
[x] Various RENDER_MODES
