replace all spaces in group/track names and not just the first one

[BNTFryingPan]

fixes LuckPerms/LuckPerms#3865

String.prototype.replace() in JavaScript only replaces the first occurrence when the first argument provided is a string. If text with multiple spaces was pasted into the box, only the first one would get replaced. This PR replaces the " " with a global regex / /g so all occurrences will get replaced.

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[BNTFryingPan]

preview:

https://github.com/LuckPerms/LuckPermsWeb/assets/7706960/d5abc8a1-5a3e-4386-9fb7-288f3ae086c9

[Turbotailz]

replaceAll() is a thing, too.

[BNTFryingPan]

~~think of the 2.1% of web users that only have replace and not replaceAll!~~