Chaining operations

[tkeriduN]

New feature motivation

I use these kinds of tools in CFT challenges. Commonly strings are converted and manipulated in several steps. An ability to chain different string operations would be greatly helpful.

New feature description

Basically add the ability to spawn more operations below the first one, where the result of the first operation is used as input in the second operation, result of second operation is input for the third operation, and so forth.

https://onlinestringtools.com/ has this feature, and it is really useful.

To make it user friendly I suggest making it possible to change type, add, and remove operations even after adding chains.

[recurser]

@tkeriduN this is a good idea. There is a < Use as input button that does something similar, but it I like the idea of displaying each step in the chain. I'll have a think about the best way to implement this...