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)
• occasional Fetch error (most likely from follow/following implementation)
• visiting profile with false userID gives error.
• user can follow indefinitely same user.
• user can follow itself.
• user can like a post more than once.
• 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.
• currently some console.log() function calls for debugging purposes are printing confidential information to web browser console, they should be removed.
• 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.
• even with a delay, sometimes a posts like doesnt update when like button is clicked.
• Search displays user IDs and name together which should not be displayed
• currently usernames can be duplicate

[denizumuteser]

go commit rope neck

[denizumuteser]