Request: A couple of improvements for Browser functionality

[petemus]

When going to the Browser with keypress B, it would be nice to have the keyboard focus set to the search field as well. It's not one time I've started entering a search keyword after pressing B without setting focus to the field and subsequently messed up many settings with keypresses that should've gone to the Browser search field.

Here's my improvement suggestions:

• Pressing B opens up the Browser and puts keyboard focus in the search field
• Pressing Esc while the field has focus would empty the field if it has content (= clear the search term)

Esc seems to remove the focus from the field already so that B can be used to close the Browser.