Consider making wormc a thinner client
I imagine this will only ever pop up when developing on worm for most users, but when working on #70 I spent a while attempting to debug why the new config options weren't working, and it was due to my rcfile using my system `wormc`, rather than `~/devel/worm/wormc`.

That said, it would also be of benefit to reduce down configuration to a "single source of truth" -- currently to add a configuration option you:
 1. add a new IPC atom in `src/atoms.nim`
 2. add it to the Config type in `src/types.nim`
 3. implement boilerplate for the option in `src/wormc.nim`
 4. implement the setter for the option in `src/events/clientmessage.nim`
 5. and finally, you can actually use the configuration option in your code

You could get rid of 1 and 3 in a single step (as well as what I mention above, avoiding errors from an easy-to-make mistake) by simply having wormc take its input and send it directly to worm which handles it in its entirety.