Line-by-line editing to deployment requests

We have added an editor to deployment requests. Previously, you were only able to select a whole file with the checkbox. This causes your file to overwrite the target as-is, which is a problem if other people also made changes to the same file.

You can now use the new Edit action on a file to pick the just the lines you want to deploy, while leaving the rest of the file unchanged. Use the button to copy blocks of text from right to left. The text on the left is freely editable, which is handy for quick fixes.