* refactor: proxy and cache user avatar images
* fix: extract keys
* fix: set avatar image URL
* fix: show the correct avatar in the list of available users in advanced request
* fix(s): set correct src URL for cached image
* fix: remove unexpired unused image when a user changes their avatar
* fix: requested changes
* refactor: use 'mime' package to detmerine file extension
* style: grammar
* refactor: checks if the default avatar is cached to avoid creating duplicates for different users
* fix: fix vulnerability
* fix: fix incomplete URL substring sanitization
* refactor: only cache avatar with http url protocol
* fix: remove log and correctly set the if statement for the cached image component
* fix: avatar images not showing on issues page
* style: formatting
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Co-authored-by: JoaquinOlivero <joaquin.olivero@hotmail.com>
