- use LEFT JOIN instead of making multiple queries
- put insert/update inside transactions
- add indexes
- fix configuration description

- new config `:storage-type` (default `:edn`, also support `:sqlite`)
- `LICENSE` change: add exceptions to `next.jdbc` (which uses EPL)

Reviewed-on: https://codeberg.org/eltrac/weepinbell/pulls/73

- refactored weepinbell.core/start-system. moved config loading outside
start-system, loaded in -main function.
- use :log-level in config and set timbre :min-level in -main

- remove deprecated weepinbell.ui
- create a ClojureScript project named bellsprout
  - use vanilla cljs and Pico CSS
  - can find and send webmentions in/to weepinbell
  - display webmentions in cards
  - <noscript> reminder
- embed frontend in weepinbell
  - opt-in, weepinbell can work without a frontend
  - serve static files from disk for now; might support a simple reverse
proxy in the future
- test frontend route (OK when enabled; 404 when disabled)

fe: ?show param that shows webmentions when set to true

equivalent of clicking "Find" button manually

- processor will call hook functions with webmention data
- refactor webhook.clj massively
- add dynamic parameter substitution for urls, e.g. {source} {target}
{event}......
- add config option :webhook-request, a function with parameters [hook,
data] that returns a map (resembling {:headers ... :body ...}).
webhook.clj uses this function to generate payload.
- allow map besids URL string in config option :webhook. if it's a URL,
sends webhook request to it with payload generated by :webhook-request;
if it's a map, it should be like {:url ... :request-fn ...}, which
specifies a payload generator.
- add request-fn preset :ntfy