fix(config): block monkey with live text stats (@d1rshan)

[d1rshan]

Prevents the invalid monkey + live text stats combination (monkey overlaps live speed / live accuracy)

This blocks:

• enabling monkey while live speed style or live accuracy style is text
• setting live speed style to text while monkey is enabled
• setting live accuracy style to text while monkey is enabled

Also adds tests for these blocked config combinations.

Closes #7714

[Copilot]

Pull request overview

Prevents unsupported UI config combinations that cause the monkey to overlap live stats when those stats use the text style, by blocking the conflicting settings at config-set time and notifying the user (closes #7714).

Changes:

• Add isBlocked guards + notice toasts for liveSpeedStyle=text / liveAccStyle=text when monkey=true, and for enabling monkey when either live stat style is text.
• Add setter-level tests verifying the blocked monkey/liveSpeedStyle combination triggers the expected notice.
• Add metadata-level tests covering blocked combinations for monkey, liveSpeedStyle, and liveAccStyle.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated no comments.

File	Description
frontend/src/ts/config/metadata.ts	Adds isBlocked rules + user notices to prevent monkey + live text stats conflicts.
frontend/tests/root/config.spec.ts	Adds tests asserting setConfig rejects conflicting settings and emits the expected notice.
frontend/tests/root/config-metadata.spec.ts	Adds table-driven isBlocked coverage for the new conflict rules.