[Enhancement] Support for custom channel emoji/emoticons

[mc-fugger]

I've searched for "emoji", "emoticon" and "smiley", both didn't return anything useful

Is your enhancement request related to a problem? Please describe.

Depends on the definition of "problem"
"I'm always frustrated when I click on a video and custom emoticons are displayed as text"

Describe the solution you'd like

When browsing comments, I'd like to have support for the custom emoticons some channels use, right now they're displayed as a text fallback

Describe alternatives you've considered

I tried imagining the emoticons without success

Additional context

This is an example of how invidious displays the emoticon

and this is how it's supposed to be

Thank you for your consideration

[SamantazFox]

Hello! Can you please provide a few examples of places where this kind of emojis are used? (comment permalinks or video/playlist URL if that's also present in descriptions)

[TheFrenchGhosty]

A 20$ bounty has been added to this issue.

Anyone opening a PR fixing this issue, will receive 20$ (in BTC) from the Invidious project.

More details: #1898