(Feature request) Extension popup position

[ggunia]

I want to display browser actions vertically on the left side of the screen.

• Support more orientation options for position browser action popups.
• Supporting more orientations would also require overflow prevention (to make sure it stays within the boundaries of the screen)

[samuelmaddock]

Happy to accept contributions for this support. Currently it's an open todo in the code: https://github.com/samuelmaddock/electron-browser-shell/blob/c47bcb3c7a1ff274b469ecffb25245cf580e5811/packages/electron-chrome-extensions/src/browser/popup.ts#L185-L193