Resolve "Trying to create a lab without specifying ANY request type leads to OOPS screen"

What does this mr do?

For some reason the "required" does not work in our select tags. I tried to find out how to fix it but nothing worked, so I manually added the error checks.

Actions taken to fix bug

Does this MR meet the acceptance criteria?

• I have added a changelog entry to reflect the significant changes I made and the bug I fixed.
• I adhere to the style guide.

Closes #552 (closed)