Request validation

[wunc]

There are some gaps in our request validation. We need to have request validation for all routes that read data (API and others).

This should probably be done as FormRequests for the most part.

• ProfilesController > ProfileUpdateRequest (done in Profile data update validations #88)
• TagsController > TagsUpdateRequest (done in Error fix to remove all tags and data type and presence validation #91)
• TagsController > TagsStoreRequest (maybe reuse the TagsUpdateRequest?)
• TagsController > TagsSearchRequest (also maybe convert to LiveWire later)
• ProfilesController > ProfileSearchRequest (see Sentry PROFILES-4X)
• ProfilesController > ProfileShowRequest
• SchoolsController > SchoolUpdateRequest
• SettingsController > SettingsUpdateRequest
• SettingsController > ImageUpdateRequest
• LogsController > LogSearchRequest (although, this should probably be implemented as LiveWire instead)
• StudentsController > StudentStatusRequest
• StudentsController > StudentUpdateRequest
• UsersController > UserUpdateRequest