Add mod left navbar for the mod edit healthcare professional section

[NabbeunNabi]

Problem

Currently we do not have a mod left nav bar when on the ModerationScreen.EditHealthcareProfessional screen for the mod edit healthcare professional section.
We need one.

Success

The mod left nav bar is created for for this section and follows the design in the figma

Requirements

• Left navbar for when on the healthcare professional section form for editing a healthcare professional is created
• It is imported into the ModLeftNavBar component
• It has functionality using intersection observer or a similar solution in order to show the current section (It might not be possible to have it change smoothly at the moment due to the length of the form)

Implementation notes

Follow the design in this Figma

• There is already a reusable function for the intersection observer
• You can see how it was implemented in the ModEditSubmissionForm component.