These buttons on each group allow exporting the sections to the clipboard in a markdown format.
The Copy All button allows exporting everything.
Note that this information is purposely _not_ translated as I expect it to primarily be used for debugging by us in bug reports.
Testing Done:
Opened About dialog, clicked all the Copy buttons and confirmed their contents; clicked the Copy All button and confirmed everything was there.
Reviewed at https://reviews.imfreedom.org/r/2196/
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