Add missing regex and validation for StringFields

This commit adds further validation for StringFields that were missing
it. This mostly amounted to being Regex patters and max lengths.

tests/forms/test_application_member.py

@@ -1,13 +1,12 @@
-from wtforms.validators import ValidationError
+import uuid
 
-from atst.domain.permission_sets import PermissionSets
-from atst.forms.data import ENV_ROLES, ENV_ROLE_NO_ACCESS as NO_ACCESS
+from atst.forms.data import ENV_ROLES
 from atst.forms.application_member import *
 
 
 def test_environment_form():
     form_data = {
-        "environment_id": 123,
+        "environment_id": str(uuid.uuid4()),
         "environment_name": "testing",
         "role": ENV_ROLES[0][0],
         "disabled": True,
@@ -17,12 +16,13 @@ def test_environment_form():
 
 
 def test_environment_form_default_no_access():
-    form_data = {"environment_id": 123, "environment_name": "testing"}
+    env_id = str(uuid.uuid4())
+    form_data = {"environment_id": env_id, "environment_name": "testing"}
     form = EnvironmentForm(data=form_data)
 
     assert form.validate()
     assert form.data == {
-        "environment_id": 123,
+        "environment_id": env_id,
         "environment_name": "testing",
         "role": None,
         "disabled": False,
@@ -31,7 +31,7 @@ def test_environment_form_default_no_access():
 
 def test_environment_form_invalid():
     form_data = {
-        "environment_id": 123,
+        "environment_id": str(uuid.uuid4()),
         "environment_name": "testing",
         "role": "not a real choice",
     }