Issue 243 refactor form components and their corresponding forms

[stamle]

Change Summary

Major refactor and updated documentation of the following FormFields components:

• field-input
• field-multi-select
• field-single-select
• field-text-area
• field-radio

Moved the aforementioned components to new directory called CommonFields

General styling overhaul of the following Form components:

• event-form
• prepopulated-event-form

Change Form

Fill this up (NA if not available). If a certain criteria is not met, can you please give a reason.

• The pull request title has an issue number
• The change works by "Smoke testing" or quick testing
• The change has tests
• The change has documentation

Other Information

The zod schema updateEventSchema maybe needs to be overhauled, it will let you PATCH events with an empty name. I tried changing up the schema but it resulted in failed API tests.