Added reformat action to public api (#2358)

## Checklist

- [/] I have added
[tests](https://www.cursorless.org/docs/contributing/test-case-recorder/)
- [x] I have updated the
[docs](https://github.com/cursorless-dev/cursorless/tree/main/docs) and
[cheatsheet](https://github.com/cursorless-dev/cursorless/tree/main/cursorless-talon/src/cheatsheet)
- [x] I have not broken the cheatsheet

---------

Co-authored-by: pre-commit-ci-lite[bot] <117423508+pre-commit-ci-lite[bot]@users.noreply.github.com>

src/actions/reformat.py

@@ -14,7 +14,7 @@
 
 @mod.action_class
 class Actions:
-    def private_cursorless_reformat(
+    def cursorless_reformat(
         target: CursorlessExplicitTarget,  # pyright: ignore [reportGeneralTypeIssues]
         formatters: str,
     ):

src/cursorless.talon

@@ -16,7 +16,7 @@ tag: user.cursorless
     user.private_cursorless_paste(cursorless_destination)
 
 {user.cursorless_reformat_action} <user.formatters> at <user.cursorless_target>:
-    user.private_cursorless_reformat(cursorless_target, formatters)
+    user.cursorless_reformat(cursorless_target, formatters)
 
 {user.cursorless_call_action} <user.cursorless_target> on <user.cursorless_target>:
     user.private_cursorless_call(cursorless_target_1, cursorless_target_2)