Stéphane Lenclud

I guess both link and image context menu should have an open with option using our new 'open with' browser bottom sheet. Could also be added to the page menu....

Reproduced on LG Leon Android 6. We should really stop supporting those ancient devices. Might not be an issue on bigger screens. 

We should support `WebViewFeature.PROXY_OVERRIDE` to replace our legacy proxy support. Related to #661. [Privacy Browser](https://www.stoutner.com/privacy-browser-android/) has a proxy option we could take a look at how they did it.

Optionally display current session name in main menu in place of the Sessions item label.

Optionally display current session name on resume. Should be done using snack-bar or toast.