[frontend] standardize the structure of update forms

[szakhlypa]

• add missing action buttons and sort them in order of: Update, Reset, Delete
• track field changes and enable/disable action buttons (Update and Reset buttons are enabled when form has changes and mutation is not in progress, disabled otherwise)
• fix: do not reset form on first render

First render, Update and Reset buttons are disabled.

Form has changes, buttons are active

Update request in progress