Toggle Fullscreen in Hangout

This extension enables Maximizing the Video/Screencast part of a Hangout and have it fullscreen if you toggle browser with presentation-mode or f11. Redesign from Google ! Google has made some big changes to Hangout, maybe it does not work properly, but it seems still good enough. Feature is similar to "Better On Air Hangouts" but this one is for Hangout and does not need Hangout-on-Air. (But also works with H-O-A if you check the box to enable H-O-A) v1.3 Version Toogle with double-click: This Version works now with doubleclick on the big video-player and makes it fullscreen (maximized) , doubleclick again to make it back to normal size. there is no browser-action-button anymore, as it only watches google-hangout urls and adds only this doubleclick behavior. another fix is the size, the screenratio is now respected and black border added if its to high or to wide. no keyboard-shorcuts and no browser-buttons (next to addressbar) as its not needed, doubleclick is more intuitive and works always in normal and f11 -mode. v1.4 Migrate to Manifest v3