Add a submit button to the search box

[hdgarrood]

Suggestion from @joneshf. If you're using the mouse already, e.g. if you right-click and paste into the search box, you currently need to switch to the keyboard to press enter to submit the query. If there were also a button, this wouldn't be necessary.

[vyorkin]

I can make a button :) was just looking for something simple like this which can get me started