Add some conveniences to Find feature

[humdingerb]

I often find myself hitting ALT+F to enter a search term, not finding anything in the current file, and then wanting to do a "Find in project" to search all files.

I'm too lazy to reach for the mouse and click the icon.

It'd be nice if I could just hit ALT+F again and hit CTRL+ENTER and have that do a "Find in project".

Also, ALT+F clears the Find text control if there isn't any word selected in the editor. It'd be better if it instead selected the text in the Find text control. Then you could either start typing for a new search term, edit the existing term, or do a CTRL+ENTER for a "Find in project".