fix: bundle emoji-picker data locally for Capacitor Android

The emoji grid wasn't rendering on Android because emoji-picker-element
defaults to fetching its data.json from jsdelivr, and CapacitorHttp's
patched fetch breaks the library's ETag-based revalidation flow. Bundle
emoji-picker-element-data via Vite's ?url import so the JSON ships as a
same-origin asset.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

src/lib/components/EmojiPicker.svelte

@@ -10,6 +10,7 @@
 
 <script lang="ts">
   import "emoji-picker-element"
+  import emojiDataUrl from "emoji-picker-element-data/en/emojibase/data.json?url"
   import type {Emoji} from "emoji-picker-element/shared"
   import {onMount} from "svelte"
 
@@ -26,4 +27,4 @@
   })
 </script>
 
-<emoji-picker bind:this={element} class="m-auto"></emoji-picker>
+<emoji-picker bind:this={element} data-source={emojiDataUrl} class="m-auto"></emoji-picker>