* lisp/cli/help.el (doom help): move to lisp/cli/meta.el, and add :dump
definition.
* lisp/doom-cli.el:
- (doom-before-init-hook): trigger hook after the file is done
loading.
- (doom-cli-backtrace-depth, doom-cli-straight-error-lines,
doom-cli-benchmark-threshold): rename these variables' prefix from
`doom-cli-` to `doom-cli-log-`.
- (doom-cli--plist): rename to doom-cli--group-plist, to better clue
in what changes it.
- (doom-cli-context-parse): remove unused letbind (argsleft).
- (doom-cli-create-context-functions, doom-cli-before-run-functions,
doom-cli-after-run-functions): define with defcustom instead of
defvar, to indicate that they are (especially) intended for end-user
configuration.
