chore: replace XMLHttpRequest with global fetch in ace third party #264
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The Manifest V3 migration guide prescribes to "Replace calls from your background script to XMLHttpRequest() with calls to global fetch()"
Ref: https://developer.chrome.com/docs/extensions/develop/migrate/to-service-workers#replace-xmlhttprequest
The only place in the codebase that contains call to XMLHttpRequest is the third party ace editor
Ref: https://github.com/ajaxorg/ace/blob/master/src/lib/net.js#L12
Modified the ace sources to overwrite the function that calls XMLHttpRequest with a function that uses fetch to make the same request.