Fix toolbar url-edit bug
This MR fixes #135 (closed).
Here's a short description of the bug: every time a user types in a search query in the address bar, all subsequent clicks to the address bar would reveal that search query even after the user has navigated to several URLs. This bug doesn't surface when I entered regular URLs, so it's safe to assume that this emanated from the logic for search-suggestions.
I fixed this by updating the tab URL in the setOnEditFocusChangeListener()
function of the toolbar editor.