Timestamps not parsed inside bold and italic text

[7vignesh]

Timestamps (e.g. <t:1708551317>) are correctly parsed when wrapped in strikethrough (~~), but are silently treated as plain text when wrapped in bold (**) or italic (_).

Steps to reproduce:
Send the following messages in Rocket.Chat:

1. ~<t:1708551317>~ → ✅ renders as formatted timestamp inside strikethrough
2. **<t:1708551317>** → ❌ renders as raw text <t:1708551317> inside bold
3. _<t:1708551317>_ → ❌ renders as raw text <t:1708551317> inside italic

Expected behavior:
Timestamps should be parsed and rendered correctly inside bold and italic text, just like they are inside strikethrough.

Root cause:
In grammar.pegjs, StrikethroughContent includes TimestampRules, but BoldContentPreferentialItemPattern and ItalicContentPreferentialItemPattern do not. Adding TimestampRules to both would fix this.

[CodeMatrix1]

Nice and Interesting observation, You are making a PR right?

[7vignesh]

yes