For a small amount of bonus points, you can implement a small front end or back end improvement to our code base, such as increasing our test coverage or modernizing some of the front end code (converting class components to functional components, converting some components to Typescript, etc.). Note that this is optional and should be of a small scope

We currently have sockets implemented, but would like to improve how we do so. We know our sockets are not efficient, and that they have poor security. Please address these issues, as well as make any other improvements as you see fit.

We have some code in place for sending messages in existing chats, but it is not working as expected - we are unable to properly send messages, and the messages are not displayed in the correct order on page load. Additionally, there is a security issue related to sending messages where a user can send messages to any conversation, not just their own conversations. (Note that this security error is not a bug you can replicate with regular use of the app. You'll need to look at the logic of sending messages to find it.) Please investigate and resolve these bugs.

Note: Changes for this ticket should not involve changing the code for sockets, which will be addressed in ticket #3

We’ve received new specs from our designer. Please implement the design for the login and signup pages, and make it mobile responsive. The design spec and needed assets are available in this zip folder. The spec may need a bit of adapting to fit our use case, so please use your best judgement.

Please include a couple of screenshots in the description when making this PR to showcase the styling you've done.

We want to track for each message if it has been read by the recipient, and to make several front end UI updates with this information, such as displaying how many unread messages there are in a given conversation.
You can reference the spec in this zip folder for the various updates to be made to reflect unread messages. (Note that the zip folder includes more than just the spec needed for this feature). Please include a screenshot in your PR description showing your updated UI.