Add quick 'Add Column' button

Please use an issue fork and merge request.

prem suthar → made their first commit to this issue’s fork.

Thanks for the patch. Can you add a test? Please add the new spelling exceptions in alphabetical order.

@Liam Morland, I have added the test. This is my first time writing a test, so please review it and let me know if any updates are needed.

As per my understanding, we also need to add a test for the "add row" functionality in this module. Additionally, we should create a folder for traits and move the trait tests inside it. Let me know if these changes need to be made.

carlos romero → made their first commit to this issue’s fork.

reroll patch for 2.5

I don't think there is going to be any more development of 8.x-2.x.

For the convenience of those on 8.x-2.5, here's the rerolled original patch from #2.