Discord Prank Editing Plugin

I want a lightweight Discord client-side plugin that lets me spoof the visible content of other people’s messages and identity details purely for fun. When the plugin is active I should be able to:

• Edit any existing message’s text as it appears on my screen
• Temporarily swap a user’s displayed username
• Replace a user’s avatar (pfp) with an image I choose

Everything happens locally—no data should actually be pushed to Discord’s servers and nothing should be visible to users who don’t have the plugin. I’m using the standard Windows desktop client with BetterDiscord, so please target that environment (TypeScript or JavaScript preferred).

Key requirements
1. Simple UI: right-click context menu entries or a small overlay to trigger “Edit message,” “Change name,” and “Change avatar.”
2. Reversible actions: a quick reset button to restore the original look, plus automatic reset on client restart.
3. User targeting: allow me to enter or pick user IDs so changes stay consistent across sessions until I reset them.
4. Clean, well-commented source code and a compiled .plugin.js ready to drop into BetterDiscord’s plugins folder.
5. Setup guide that covers installation, enabling/disabling, and known limitations.

If you’ve built BetterDiscord or Powercord extensions before, let me know and share a sample. I’m aiming for a smooth, bug-free experience, so factor in at least one revision round for polish.