Update copy for new app provisioning

- change flashed message for adding members
- use the correct helper text for the app name input
- a few other updates to text in translations

atst/routes/applications/settings.py

@@ -183,11 +183,7 @@ def handle_create_member(application_id, form_data):
                 token=invite.token,
             )
 
-            flash(
-                "new_application_member",
-                user_name=invite.user_name,
-                application_name=application.name,
-            )
+            flash("new_application_member", user_name=invite.first_name)
 
         except AlreadyExistsError:
             return render_template(

atst/utils/flash.py

@@ -104,9 +104,9 @@ MESSAGES = {
         "category": "warning",
     },
     "new_application_member": {
-        "title_template": translate("flash.success"),
+        "title_template": """{{ "flash.new_application_member.title" | translate({ "user_name": user_name }) }}""",
         "message_template": """
-          <p>{{ "flash.new_application_member" | translate({ "user_name": user_name, "application_name": application_name }) }}</p>
+          <p>{{ "flash.new_application_member.message" | translate({ "user_name": user_name }) }}</p>
         """,
         "category": "success",
     },