Ditched the filmstrip. The TV tab now renders the exact music wishlist nebula by
reusing its global wl-* classes: shows are glowing orbs sized by wanted-episode
count, click to expand into a season 'album fan' (tiles), click a season tile to
reveal its episodes; removes at episode/season + a show-remove × on the orb.
Everything's visible at once, no horizontal scrolling. Movies tab unchanged.
Only video-specific CSS is the show-remove button; behavior (orb/tile expand,
opens, removes) is wired via delegation in video-wishlist.js. Easy to tweak from
this shared base.
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