feat: items in the dash should get loading / error statuses

[EthanLatimerGB]

Description

Currently, when no data is coming through the telemetry Dash page, you simply get empty statuses that don't convey anything happening behind the scenes.
A better way of presenting this would be to have loading statuses plus if nothing ever loads causing a timeout error, the DashStatusItem component should render an error status.
Something like this is currently in the RefactoringWork branch but this needs to be taken further for error statuses.

Requirements

• Change the Redux state to accommodate for SOCKET_LOADING and SOCKET_ERROR flags. The SIO should be able to handle error statuses with sio.on("error", ...). For SOCKET_LOADING statuses, we could by default set SOCKET_LOADING state in redux as true. Then once the socket is connected with SIO, we also update that state flag to false.
• Update the Dash and DashStatusItem components to accommodate for the flags through useSelector. If the flag is set to SOCKET_LOADING, we render with the same styling a component with the message "connecting to service". For the error flag, we render a similar thing but a message like "error connecting to service".

Relevant FSUK Rules

N/A

Additional Notes