Add a keyword search to top left search bar

In the top left corner when you click on the friends tabs you can search for four things. Usernames, Text Channels, Voice Channels, and Servers. It would help a lot if you could include a keyword search. For example, if I lost a dm with a person but I know I sent that the word "wumpus" I can search it up, and all the DMS where I have sent the word "wumpus" will show up. This feature is like a global control+f but only for messages you have sent.