Searched words appear underneath the searchbox

[kaminaze]

• VSCode Version: 1.7.2
• OS Version: Window 10

Steps to Reproduce:

1. Have a page of editor filled with text
2. Search for words at the top of the editor using Ctrl + F, now the word you've search is underneath the searchbox which is really annoying

[rebornix]

Let's track it in #5525 and solve it in May.