This PR does a few things:

• Removes the global command timeout. This has only caused problems to users so far, and offers no benefit. Users shouldn't be required to manually fiddle with the timeout value to figure out what is sufficient for a long-running command they want to run. This PR switches to a less-restrictive approach, by allowing users to opt-in to a per-request timeout.
• Refactors the config file and relevant code. There is now two new config structs, timeouts and spinner. You can see what they look like by pulling and compiling off this branch and running config print
• Introduces a new "stopwatch" component to the spinner. Users can see how long their operation is taking, and the stopwatch only appears after a configurable amount of time