feat: open all "link external IDs" in single click

[Dr-Blank]

Could be 2 clicks: one for all artists and one for all the tracks such that all the links open in new tabs just by clicking once on this new button.

[Aerozol]

YoGo9 has created a userscript that adds a "open all" button, which could be integrated:
https://github.com/YoGo9/Scripts/tree/main (HarmonyOpenAllRecordings)