Add song select beatmap metadata wedge

[frenzibyte]

• Depends on Prerequisite changes for song select v2 design work #32840
• Depends on Add shear-aligning drawable wrapper #32841
• Split from Design implementation pass of Song Select v2 #32715

Preview:

CleanShot.2025-04-18.at.06.51.24.mp4

Notes:

• Online content fetching for genre/language and metrics are not cached.
• FailRetryDisplay's draw node logic could potentially be integrated with BarGraph, but I've left that out for now as it's too much effort for little gain.

[peppy]

@frenzibyte considered adding user tags here? see #32568 (reply in thread).

as a follow-up task would probably be best.