Use translations and make errors look pretty

translations.yaml

@@ -197,9 +197,12 @@ forms:
       not_sure: 'Not sure, unsure if planning to develop natively in the cloud'
       not_sure_help: Not sure? Talk to your technical lead about where and how they plan on developing your application.
     number_description: Task order number (13 digits)
+    pop_errors:
+      date_order: PoP start date must be before end date.
+      end: PoP end date must be before or on {date}.
+      start: PoP start date must be on or after {date}.
     scope_description: 'What do you plan to do on the cloud? Some examples might include migrating an existing application or creating a prototype. You don’t need to include a detailed plan of execution, but should list key requirements. This section will be reviewed by your contracting officer, but won’t be sent to the CCPO. <p>Not sure how to describe your scope? <a href="#">Read some examples</a> to get some inspiration.</p>'
     scope_label: Cloud project scope
-    start_date_error: PoP start date must be before end date.
     team_experience:
       built_1: Built, migrated, or consulted on 1-2 applications
       built_3: Built, migrated, or consulted on 3-5 applications