- Add theme import success message
- Remove prints serverside

- Fix category names causing HTML errors (which prevented emojis from showing up)

- Add safety checks to the migration script

- Fix incorrect background blur

This is kinda of a big update, a lot of things changed in the background:

- Theme editor & the ability to save multiple themes
- Use the system of language files, added Portuguese translation
- Make the right-click menu options work independently (so now it can show both "Copy text..." and "Copy link...", for example)
- Moved and renamed source code files, now using more appropriate names
- Implemented new data save formats, save data to a separate folder. Custom Chat will automatically "migrate" your existing theme/emojis/chat tags to this new folder.
- Replaced all references of `SChat` with `CustomChat`
- Made functions from the `CustomChat` global table use `:` only when necessary
- Use a dedicated library to synchonize server theme/emojis/tags across clients
- Store emojis in a more "readable" format
- Vastly faster way to get emoji properties
- Made the chat history panel able to be used separately
- Move the main chat interface to a separate vgui panel

Misc. Fixes/Improvements:

- Fixed a "nil" text showing up after copy/pasting content that had a player profile picture
- Fixed incorrect context menu position after right-clicking a tag piece in the chat tags editor
- Fixed scrolling back to the top after adding a new emoji in the server emojis editor
- Added the option to choose a player when adding chat tags
- Highlight important UI elements with a periodic "blink"
- Don't show headers for empty emoji categories
- Whitelist Facepunch and more Steam/Akamai avatars
- Fix embed HTML entities not working properly
- Handle embed metadata images starting with two slashes

- Fix audio players not working and being removed when a new message comes up
- Minor code refactor

- Fix error when server theme data is nil

- Fix oversight when comparing theme hashes

- Validate URLs from avatar images

- Prevent avatar errors from invalid IDs