Add filename copy button to the Github PR review comments

What the title says

Penulis
HappyViking
Pemasangan harian
0
Total pemasangan
2
Nilai
0 0 0
Versi
2
Dibuat
08 September 2023
Diperbarui
12 September 2023
Lisensi
MIT
Berlaku untuk

I find it kind of annoying that when you're on the page for a Github PR that someone has reviewed, there isn't a copy button to copy the filenames of the files the person has commented on until you go to the "review" tab. This fixes that.