Update en.json: "setup" -> "set up"

[bertday]

Tiny grammar fix: "set up" should be two words when used as a verb.

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Description

Fixes a minor grammar issue (described above).

Type of change

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• User interface (UI)

Checklist

This is just an edit to the en.json dictionary — no code changes!

• My code follows the style guidelines of this project
• I ran ESLint and other linters for modified files
• I have performed a self-review of my own code and tested it
• I have commented my code, particularly in hard-to-understand areas (including JSDoc for methods)
• My changes generates no new warnings
• My code needed automated testing. I have added them (this is optional task)

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[louislam]

Since it is conflict with #4394, it will be merged after #4394 to avoid the Weblate issue.

[CommanderStorm]

Merging as we had to merge #4394 due to #4788