* refactor: simplify logic to load web_devicons
* refactor: make register() asynchronous
* fix: load lazily modules outside this plugin
* refactor: simplify logic to wait initialization
* refactor: use uv.hrtime() instead of os.clock()
* fix: avoid errors in calling plenary.log in async
* test: store elapsed time to check in tests
* test: fix module names
This becomes a problem only in Ubuntu because macOS and Windows does not
care cases in filenames.
* test: fix types and unused modules
* style: fix by stylua
* refactor: make recency / entry_maker loaded lazily
* chore: change the position of `?`
* fix: use config module to simplify code
* test: fix tests to use frecency.config
* test: remove macOS with nightly Neovim temporarily
* I did an overhall for all codes and added typing by Lua-language-server and tests. It also works on CI.
* Now it searches files on the workspace completely asynchronously. It does not block your text input. (Fix#106)
Make count = 1 when you open a file you've never opened (Fix#107)
