Transcript tweaks

*Moved download button to right of search bar, added margin
*Expanded player width
*Transcript Type question-icon & text on Item label
*Copy tweaks
—“Upgrade to Premium” -> “Reprocess as Premium”
—“{Edit, Save, Expand, Collapse} Transcript” -> Delete “Transcript” to
save space
—“SRT Format” —> “SRT Format (Captions)”
— transcriptType message edit