Take colour off the overshooting spatial spring

Four components animated background-color and color on ease-spatial-fast, whose
fast variant peaks at 1.094 — the one thing tokens/motion.css says a colour must
never do. Tailwind cannot emit two springs on one element, so a small unlayered
file gives shape and size the spatial spring and colour and elevation the
effects one in a single property list. Plan step 18, actions.md ACT-19.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Qwx5USif3wFFmxtHg5U1g9

resources/css/material.css

@@ -20,6 +20,7 @@
 @import './tokens/font.css';
 @import './tokens/theme.css';
 @import './tokens/state.css';
+@import './components/actions.css';
 @import './components/groups.css';
 @import './components/list.css';
 @import './components/field.css';