Easier to search branches by exact name

Previously, in the code browser, when you were searching for a branch by typing its name, a branch with the exact name of what you typed could appear at the bottom of the list of matching branches. This made it hard to recognize and sometimes requiring scrolling to the end of the list to select the branch.

Now, when a branch name exactly matches what you type in the search box, it appears at the top of the list of matching branches for faster recognition and selection.