* Implement first draft of last subscription refresh timestamp
* Update styling to be a top bar
* Update styling to be banner-compatible, & increase banner X button size on mobile
* Update subscription refresh timestamp to be relative
* Implement refresh timestamps for Shorts, Live, and Community tabs
* Extract refresh widget to its own component
* Add Trending and Popular refresh widgets with timestamps
* Fix justifying when no timestamp exists
* Move timestamps to utils store
* Remove unneeded ref classes and currentLocale computed property
* Add page-specific titles for each feed type
* Implement showing least recent cache date per profile
* Update styling property placement & match top nav box shadow on ft-refresh-widget
* Implement showing timestamp for profile only if all channel subscriptions can be found in cache
* Disable refresh button instead of removing it or the widget from the DOM
* Increase top banner's top margin
* Update channel caching calls to provide timestamps
* Modify updateCacheByChannel functions to have default timestamp of new Date()
* Fix 30-day month relative date calculation scenarios through new optional parameter
* Rectify Case 3 (see https://github.com/FreeTubeApp/FreeTube/pull/3668)
* Add back missing line in Popular.js