New LinkStack release (version 4.1.2)

Critical Bugfixes!

⚠️PLEASE UPDATE IMMEDIATELY, AS IT WAS POSSIBLE TO EXECUTE MALICIOUS CODE ON ALL LINKSTACK INSTANCES PRIOR TO THIS UPDATE!⚠️

New additions:

• Fixed JavaScript injection exploit

• Fixed adding custom link favicon causing error 500

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Knows issues:

The favicon system, used for custom buttons, may not work properly for some websites. This will be addressed in one of the following patches.

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