The wrapper had width:100% which pushed the right-side menu links
(mail/contacts/settings/logout) out of #taskbar in Classic, and the
global custom select styling defeated Roundcube's native select
rendering — even when reset — because any background-image on a
<select> disables the native gradient/rounded corners.
- Scope the custom appearance/SVG-chevron CSS to Elastic and Larry
- Add a Classic-specific rule (width:auto, max-width, -2px nudge) that
preserves Roundcube's native select look in #taskbar
- Drop the inline padding:0 imposed by the PHP renderer; let CSS own it
- Cap the Larry wrapper width to keep .button-logout in flow, and move
the Larry-only styling out of the JS into the scoped CSS rule
Fixes#1
