docs: Update optimisation to keep using eGlow instead of removing it

[SlyOtters]

Description

Hello, as the current developer of eGlow I'd like to propose a change in the documentation as currently it states to remove eGlow while it can be modified to disable the features. Although that this will cause incorrect glow colors unless TAB groups/users are reconfigured (which I also included). I think it's better to explain how to disable these parts in eGlow rather than saying to remove it fully.

Resolved issues

NA

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[ukdaaan]

@goosBanny Can you have a little look over this and give it the thumbs up

[goosBanny]

lgtm