Most of the feature don't work anymore for me, Safari 15 #4862

Hey there! I've used refined-github for a long time, and enjoy it very much.

I've recently updated my Mac to macOS Monterey, and with it, Safari to v15 (precisely Version 15.0 (17612.1.28.5)). Since then, most of the feature of refined-github don't work anymore. Just eyeballing the feature list very very very fast, I can already note all those don't work:

• ci-link
• default-branch-button
• swap-branches-on-compare
• forked-to
• repo-age
• download-folder-button
• toggle-files-button
• copy-file
• list-prs-for-file
• quick-comment-edit
• comment-fields-keyboard-shortcuts
• and many more

Information:

Safari v15.0 refined-github: latest master at this date (I build it from source) Only enabled extension All features are enabled I have provided a token with all needed scopes but delete_repo I don't use GitHub Enterprise.

I have some errors in the console :

[Error] TypeError: mimicFn is not a function. (In 'mimicFn(memoized, fn, {
          ignoreNonConfigurable: !0
        })', 'mimicFn' is an instance of Module)
    mem (refined-github.js:405)
    (anonymous function) (refined-github.js:2950)
    (anonymous function) (refined-github.js:9784)
    Global Code (refined-github.js:9785)

Is this expected with the new Safari release, or have I done something wrong? I figured that there are way too much problems for it to be a bug on your side, so I did not use the "bug" template. Tell me if I should have, I will reopen an issue :) Thanks for your help!