User JavaScript and CSS

Userscript's and userstyle's — simple extension to inject own JavaScript or CSS rules to any page.

Features:
- Instant execution
- Custom libs include
- URL masking allows use one script or CSS on many pages

Documentation:
https://tenrabbits.github.io/user-js-css-docs/

Change log:
Version 3.0.6 beta
- `try catch` wrapper removed
- CSS injection improved
- added button to save converted URL

Version 3.0.5 beta
- the mode of injection of styles into the DOM has been returned
- minor fixes

Version 3.0.3 beta
- modules are now in the same scope
- CSS injection improvement
- and other minor fixes

Version 3.0.2 beta
- hotfix: fixed bug with registration and deletion of scripts
- added feature to change start scripts before page loading
- added feature to strictly read URL patterns

Version 3.0.1 beta
- Improved CSS injection
- Fix loading external modules when replacing storage

Version 3.0.0 beta
- The extension has been moved to MV3
- Added option to inject scripts and styles in iframe
- Added the feature of live CSS
- Added the One Dark theme and a few other improvements

Version 2.0.0
- 90% of the code has been rewritten;
- Improved UI;
- Added SASS support;
- Added Prettier formatter
- Other minor improvements

Version 2.0.0
- 90% of the code has been rewritten;
- Improved UI;
- Added SASS support;
- Added Prettier formatter
- Other minor improvements

Version 1.2.8
- Added function for naming rules
- Updated translations

Version 1.2.7
- Updated all extension libraries to current versions

Version 1.2.6
- Fixed error in console \"Unchecked runtime.lastError: The message port closed before a response was received\"
- Improved domain getter from URL
- Updated Ace Editor and jQuery to latest

Version 1.2.5
- Resolved bug with '@import' and \"Auto-important css\" feature
- \"Auto-important css\" feature now disabled by default
- Added feature to exclude URL's by '!' symbol at start
- Updated jQuery and Ace editor to last versions
- Other small fixes

Version 1.2.4
- Added manual cloud sync in testing mode
- Improved \"auto-important css\" feature
- Other small fixes

Version 1.2.1
- Fixed algorithm of \"high priority CSS\"

Version 1.2.0
- Added toggle button in site list
- Added documentation tab
- Added 'Vintage mode' option to Ace Editor
- Updated jQuery, Ace Editor to last versions
- Other small fixies

Version 1.1.5
- Returned old method injection and added option to toggle this. Alternative method has feature to avoid CORS issues, but has only DOM access to site (no JS context). Old and now primary method is injecting by