Disable run button when program is running #23
Description
A program such as the hash loop takes a long time to execute. Spam-clicking the run button creates a long queue of executions that the user must wait for to finish. We should lock the run button until the execution finishes, the prevent the buildup of such a queue.
We must use something like https://github.com/Jinxit/leptos_workers (web workers) to move the execution of Simfony code into a separate "thread" while keeping the remaining UI responsive. async does not work.