Resolve "Display date on "Pending" request for a slotted lab"

What does this mr do?

Adds a date to the request view of a time slot in a lab.

Screenshots

after

Does this MR meet the acceptance criteria?

• I have added a changelog entry to reflect the significant changes I made.
• Tests were created to test the feature.
• I have updated the documentation accordingly.
• I adhere to the style guide.

Closes #238 (closed)