The session-toolsets restriction chip (#493) was making the composer
footer too cramped on narrower widths once it was sharing space with
model, reasoning effort, profile, and context-usage indicators.
Surgical fix: `_applyToolsetsChip()` now sets the wrap to display:none
unconditionally. Underlying state and the /api/session/toolsets endpoint
still work, so any cron job or scripted client that relies on
`enabled_toolsets` continues unaffected. To be revisited when the
footer layout is redesigned (#1430).