[Publisher] Admin Panel: Update copy for the copy-superagency-metric-settings checkbox and warning message to add more specificity

[mxosman]

Description of the change

Update copy for the copy-superagency-metric-settings checkbox and warning message to add more specificity that the copying process will overwrite existing child agency settings and that it will copy across all sectors.

(@morden35 - I also updated the styling for the warning message to make it pop out more - lmk what you think!)

Related issues

Closes #1178

Checklists

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[morden35]

love it! thank you Mahmoud!