Improve chat search functionality for emojis and regular expressions

I have many long dm's and it's often hard to find a specific message, especially if I'm trying to search by emojis.

Intuitively, I would think that searching with emoji codes would work but it doesn't perplexingly. So, currently its impossible to search using emojis. What I think would be nice is if, for example, one can find every instance of the 😂 emoji by searching up ":joy:" or even just "joy".

Regular expression would just be very convenient. Its super powerful and especially when looking for a particular combination of words, can prove to be extremely useful. I'm pretty sure discord itself uses regular expressions for its searching capabilities so it probably wouldn't be too difficult giving users the ability to use it as well.