Potential hang on "IPFS is Starting"

Per @UnKnoWn-Consortium, two conditions exist that can result in Desktop hanging on "IPFS is Starting" - original issue is https://github.com/ipfs-shipyard/ipfs-desktop/issues/1723 for background:

1. Promise returned by checkIfAddrIsDaemon function at config.js does not resolve when the target address is occupied by another service that may or may not be responding to the test POST request; and
2. Selecting an alternative port via the prompt presented by the app does not alter the api file inside the .ipfs folder