Revert "Remove Ctrl+Z for undoing task removals until the conflict with other listeners for Ctrl+Z can be figured out"

This reverts commit 8f877a2cee.

ui/media/js/main.js

@@ -320,6 +320,12 @@ function undoRemove() {
 
 undoButton.addEventListener('click', () =>  { undoRemove() })
 
+document.addEventListener('keydown', function(e) {
+    if ((e.ctrlKey || e.metaKey) && e.key === 'z' && e.target == document.body) {
+        undoRemove()
+    }
+})
+
 function showImages(reqBody, res, outputContainer, livePreview) {
     let imageItemElements = outputContainer.querySelectorAll('.imgItem')
     if(typeof res != 'object') return