Bug Fixes for Sprint 2 containing bugs from older sprints

[denizumuteser]

List of bugs

• [ ] a user can access the feed without logging in, from feed he/she/it/they/them can access to any profile and than change profile information and also post and like as that user. (impersonation without authentication)
• [x] occasional Fetch error (most likely from follow/following implementation)
• [ ] visiting profile with false userID gives error.
• [x] user can follow indefinitely same user.
• [x] user can follow itself.
• [x] user can like a post more than once.
• [x] update profile option at profiles currently not working when updating more than one field.
• [ ] when user changes its username, his posts contain he/she/it/they/them older username as author.
• [x] currently some console.log() function calls for debugging purposes are printing confidential information to web browser console, they should be removed.
• [x] in feed and profile there are some component rerenders that are unnecessary and might cause issues.
• [ ] when deleting a profile, posts of that profile must also be deleted.
• [x] even with a delay, sometimes a posts like doesnt update when like button is clicked.
• [x] Search displays user IDs and name together which should not be displayed
• [ ] currently usernames can be duplicate

[denizumuteser]

go commit rope neck

[denizumuteser]