Programmatically update starter packs

[jlewi]

• Implement Auth and Config interfaces using local file. This way we can reuse the bulk of the code when running locally.

• I have an initial CLI that can apply the resource of kind AccountList to update a Bluesky list given a YAML file

• I have a command to dump the search terms from a YAML file containing a Feed list so they can easily be copied and pasted into blueskyfeedscreator

• I added tidy commands

• There's a lot of code from mattn/bsky that needs to be cleaned up

• I need to figure out whether to keep the webCLI or just get rid of it

• Arguably we no longer need a webcli

  • A webcli was needed because I didn't know how to sync lists to bluesky so users need to use my code to access things
  • But now that we are aiming at producing a feed consumers of the feed can interact with it through the bluesky app
  • So only maintainers (i.e. me) really need to use the CLI so building and installing a go binary is probably fine.

Related to #1