chore: insert unicode emoji from picker and autocomplete instead of shortcode

[Copilot]

Selecting an emoji from the picker or : autocomplete was inserting the shortcode (:see_no_evil:) instead of the unicode character (🙈). Custom emojis without a unicode counterpart should continue using the shortcode format.

Changes

• MessageBox.tsx: Emoji picker callback now resolves emoji.list[':name:']?.unicode before inserting; falls back to :name: for custom/unknown emojis
• ComposerPopupProvider.tsx: : trigger autocomplete getValue returns unicode when available, full :shortcode: otherwise; prefix set to '' (was implicitly ':') to avoid double-colon insertion

// Before
chat.emojiPicker.open(ref, (emoji) => chat.composer?.insertText(` :${emoji}: `));

// After
chat.emojiPicker.open(ref, (emojiName) => {
  const emojiEntry = emoji.list[`:${emojiName}:`];
  const text = emojiEntry?.unicode ? ` ${emojiEntry.unicode} ` : ` :${emojiName}: `;
  chat.composer?.insertText(text);
});

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[dionisio-bot]

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Latest commit: 7443857

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[cubic-dev-ai]

No issues found across 2 files