style(embed): widen the gap between <ote-subscribe> badges

layout="badges" triggers were touching edge-to-edge at gap: 0.4rem.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

Author: hhkaos

apps/embed/src/subscribe.css.ts

@@ -9,7 +9,7 @@ export const SUBSCRIBE_CSS = `
   display: inline-flex;
   align-items: flex-start;
   flex-wrap: wrap;
-  gap: 0.4rem;
+  gap: 0.6rem;
   --ote-surface: #f6f7f9;
   --ote-border: #e3e6ea;
   --ote-text: #1c2128;