Add Discord RPC

[AshbornXS]

Describe your suggested feature

Discord Rich Presence for reading manga, navigating the app, etc

Other details

not really a useful feature but rather a cool one, just recently discorvered that Kuukiyomi has it, it's an aniyomi fork but I think it's pretty possible since it still uses Tachiyomi/Mihon as the base

Acknowledgements

• [X] I have searched the existing issues and this is a new ticket, NOT a duplicate or related to another open issue.
• [X] I have written a short but informative title.
• [X] If this is an request for a feature in the original Tachiyomi, I am opening because multiple versions of Yōkai have been released without this feature.
• [X] If this is an issue with an extension, or a request for an extension, I should be contacting the extensions repository's maintainer/support for help.
• [X] I have updated the app to version 1.8.4.1.
• [X] I have checked through the app settings for my feature.
• [X] I have admitted that I am a clown by having checked this box, as I have not read these acknowledgements.
• [X] I will fill out all of the requested information in this form.

[Z3R0-The-Bot]

@AshbornXS this issue was automatically closed because:

• You have not carefully read the acknowledgements.