[x] Add validations - These need to be added to the Register/Login component.
Validations:
[x] Username must be unique and between 3 and 30 characters.
[x] Email must be valid email and unique in the system.
[x] Password must be between 8 and 30 characters and must include at least one number and one symbol.
[x] First and last names must be between 1 and 30 characters and must include only uppercase and lowercase letters (X Æ A-12 is not a valid personal name).
[x] Phone number must have 10 digits and be unique in the system.
Validations: