v0.3.2 - Fix dark mode conflicts with WordPress global styles

Fix dark mode body colors overridden by WordPress theme.json styles.color,
add broad dark mode rules for plugin form elements, fix footer-columns
template, and add style variation bridge function.

Co-Authored-By: Claude <noreply@anthropic.com>

theme.json

@@ -271,10 +271,6 @@
         "useRootPaddingAwareAlignments": true
     },
     "styles": {
-        "color": {
-            "background": "var:preset|color|base",
-            "text": "var:preset|color|contrast"
-        },
         "spacing": {
             "blockGap": "1.5rem",
             "padding": {