* style: rename `VaultMetadata.add_metadata` to `VaultMetadata.index_metadata`
* refactor(vault): refactor filtering notes
* fix(application): improve usage display
* fix(application): improve colors of questions
* feat(application): limit the scope of notes to be processed with one or more filters
* build(deps): update identify
* feat(frontmatter): frontmatter method to add key, values
* build: add pysnooper to aid in debugging
* feat(application): add new frontmatter
* build: clean up dev container
* fix(notes): diff now pretty prints in a table
* docs(readme): update usage information
* docs(readme): fix markdown lists
Need more attention here. Very difficult to test the keyboard interaction with questionary. Going to try using pexpect soon to hopefully add better coverage.