[JobCard] Make Fields Editable

[alliu879]

What's new in this PR

Description

• Add a form to allow users to edit the field values of a job card
• Conditionally render input fields rather than text when editing
• Create new jobState state within JobCard and set the state when job edits are saved

Screenshots

How to review

• Click "Edit" to start editing and ensure that edited fields are properly updated when saved
• Ensure that any discarded changes do not appear in the job card

Next steps

• Ensure that editing access is only available to admins
• Add scroll to job cards in order to properly be able to save edits to longer jobs
• Replace "Edit" button with editing icon (i.e. pencil) and make styling changes based on Mia's designs (coming soon)
• Refactor code to remove hard-coded values for job field names (i.e. date, contactPerson, etc.). Blocked by PR Use Firestore Listener to Update Feed and Approval Screens #78

Relevant Links

Online sources

Related PRs

CC: @surajr10 @themiachou8