users can now add and drop connections with other users

[ccorkery97]

• Related Issue (include '#'): Issue #457
• Description of changes made: Changes were done in Directory page where a user can now see their connections, see other users they are not connected to, add those users to their connection list, and drop users from their connection list.
• Is the feature complete/bug resolved/etc..: the feature is complete
• Any known bugs/strange behavior: no known bugs
• Is there specific feedback you would like on these changes: some feedback on the design of the directory page would be useful because I wasn't sure where to show the users connections.
• Screenshot(s):

[ccorkery97]

I fixed some of the minor changes but wasn't sure what you wanted with the services, did you want me to make my own services for connections and add those functions in there?

I did try putting the different cards into the render method but i couldn't get it to work and display each user in the array.

With the request functionality I wasn't sure how to set up the backend so that the request array would have not only the id the request is from but also if it is accepted or not, so i just have and array of id's and when one is accepted it is removed from the array.

[ccorkery97]

Before this PR can be merged: functions should be added to services, JSX should be put inside render, and the logic of the functionality should be done in such a way where requests have an ID field denoting from which user the request is and also a boolean field showing whether the request has been accepted or not.