backend: application.properties refactor.

src/main/resources/application.properties

@@ -1,7 +1,6 @@
-spring.datasource.url=jdbc:mysql://localhost:3306/portify <- WRITE-HERE-THE-DB-NAME
-spring.datasource.username=root <- WRITE-HERE-THE-USERNAME
-spring.datasource.password=root <- WRITE-HERE-THE-PASSWORD
-
+spring.datasource.url=jdbc:mysql://localhost:3306/portify
+spring.datasource.username={insert here the username}
+spring.datasource.password={insert here the password}
 spring.jpa.hibernate.ddl-auto=update
 spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.MySQL5Dialect