fix: Make IS_MAYBE_MIRAGE simplified

[MichalBryxi]

Description

• In previous version we fixed the code for FireFox that can now work in FireFox which has different .toString() implementation
• This change should make it more error prone as it completely removes whitespace from the strings and then compares them
• Follow-up for #9360

Notes for the release

[MichalBryxi]

Sigh me :)

Maybe would help if I would not just ignore the hooks setup and figure out what is this error about:

git commit --amend
.git/hooks/pre-commit: line 2: ./node_modules/pre-commit/hook: No such file or directory

Ok, let's try one more time.

[runspired]

@MichalBryxi we have no hooks! that means you cloned us at a point long ago when we did. You can safely remove that hook file/directory.