Show strikethrough and bold text in room list message previews

[tanayvk]

Fixes vector-im/element-web #16330

Changes made:

• Render HTML content in message previews (using dangerouslySetInnerHTML)
• Sanitize message preview html to retain only strikethroughs and bold formatting (<del> and <strong> tags)

Edit: Signed-off-by: Tanay Karnik [email protected]

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Here's what your changelog entry will look like:

🐛 Bug Fixes

• Show strikethrough and bold text in room list message previews (#5813). Contributed by @tanayvk.

[SimonBrandner]

@tanayvk, thanks for working on this! Could you please include a sign-off as described here?

[tanayvk]

Sure. I thought I did sign-off, but let me recheck.

[tanayvk]

Okay for some reason git rebase --signoff origin/develop doesn't seem to add the signoff to the commit messages automatically. Anyway, I have added the sign-off in the PR comment message, that's okay right?

[SimonBrandner]

@tanayvk, yeah, that's alright

[tanayvk]

Okay done. Message previews now render: italics, underlined, bold, code and strikethroughs.

[turt2live]

hey @tanayvk are you able to take a look at updating this?

[andybalaam]

This PR hasn't seen any attention for about 6 months, so we should probably close it unless someone is willing to take it on and address the remaining comments.

I'll give it a week and then close if I don't see a response.

[andybalaam]

Feel free to re-open if you want to get this code rebased and working with the latest!