Allow users to delete their own submission (#176)

* #175 - Allow users to delete their own submission

* #175 - Update tests

* #175 - Update POSTMAN collection

* #175 Fix review comments

Author: callmekatootie

config/test.js

@@ -27,6 +27,7 @@ module.exports = {
   AUTH0_CLIENT_ID: process.env.AUTH0_CLIENT_ID,
   AUTH0_CLIENT_SECRET: process.env.AUTH0_CLIENT_SECRET,
   USER_TOKEN: 'eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJyb2xlcyI6WyJUb3Bjb2RlciBVc2VyIl0sImlzcyI6Imh0dHBzOi8vYXBpLnRvcGNvZGVyLmNvbSIsImhhbmRsZSI6IlNoYXJhdGhrdW1hcjkyIiwiZXhwIjo1NTUzMDE5OTI1OSwidXNlcklkIjoiNDA0OTMwNTAiLCJpYXQiOjE1MzAxOTg2NTksImVtYWlsIjoiU2hhcmF0aGt1bWFyOTJAdG9wY29kZXIuY29tIiwianRpIjoiYzNhYzYwOGEtNTZiZS00NWQwLThmNmEtMzFmZTk0Yjk1NjFjIn0.2gtNJwhcv7MYc-muX3Nv-B0RdWbhMRl7-xrwFUsLazM',
+  ANOTHER_USER_TOKEN: 'eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJyb2xlcyI6WyJUb3Bjb2RlciBVc2VyIl0sImlzcyI6Imh0dHBzOi8vYXBpLnRvcGNvZGVyLmNvbSIsImhhbmRsZSI6IlNoYXJhdGhrdW1hcjkyIiwiZXhwIjo1NTUzMDE5OTI1OSwidXNlcklkIjoiNDE0OTM1MCIsImlhdCI6MTUzMDE5ODY1OSwiZW1haWwiOiJmb29AYmFyLmNvbSIsImp0aSI6IjZmNzg4MWQ0LThlOTctMTFlYS1iYzU1LTAyNDJhYzEzMDAwMyJ9.Sou5VYEq8dV6AS8OX_fW_xHHUn2qObGHwoEk9L34Jaw',
   COPILOT_TOKEN: 'eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJyb2xlcyI6WyJDb3BpbG90Il0sImlzcyI6Imh0dHBzOi8vYXBpLnRvcGNvZGVyLmNvbSIsImhhbmRsZSI6ImNhbGxtZWthdG9vdGllIiwiZXhwIjo1NTUzMDE5OTI1OSwidXNlcklkIjoiNDA0OTMwMTIiLCJpYXQiOjE1MzAxOTg2NTksImVtYWlsIjoiY2FsbG1la2F0b290aWVAdG9wY29kZXIuY29tIiwianRpIjoiYzNhYzYwOGEtNTZiZS00NWQwLThmNmEtMzFmZTk0Yjk1NjFjIn0.AR1-A7zm8Rur-P36De4GUsSO1FsSb2CWby8KUZ66Dm0',
   ADMIN_TOKEN: 'eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJyb2xlcyI6WyJBZG1pbmlzdHJhdG9yIl0sImlzcyI6Imh0dHBzOi8vYXBpLnRvcGNvZGVyLmNvbSIsImhhbmRsZSI6IlRvbnlKIiwiZXhwIjo1NTUzMDE5OTI1OSwidXNlcklkIjoiNDA0MzMyODgiLCJpYXQiOjE1MzAxOTg2NTksImVtYWlsIjoiYWRtaW5AdG9wY29kZXIuY29tIiwianRpIjoiYzNhYzYwOGEtNTZiZS00NWQwLThmNmEtMzFmZTk0Yjk1NjFjIn0.pIHUtMwIV07ZgfaUk9916X49rgjKclM9kzQP419LBo0',
   USER_NO_ROLE_TOKEN: 'eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpc3MiOiJodHRwczovL2FwaS50b3Bjb2Rlci5jb20iLCJoYW5kbGUiOiJTaGFyYXRoa3VtYXI5MiIsImV4cCI6NTU1MzAxOTkyNTksInVzZXJJZCI6IjQwNDkzMDUwIiwiaWF0IjoxNTMwMTk4NjU5LCJlbWFpbCI6IlNoYXJhdGhrdW1hcjkyQHRvcGNvZGVyLmNvbSIsImp0aSI6ImMzYWM2MDhhLTU2YmUtNDVkMC04ZjZhLTMxZmU5NGI5NTYxYyJ9.ZqEx54a157u1LaNjYwa_oWzp6nIuR_80jw6u7fXE7QQ',