Switch statement subject (#2046)

`subject, switchStatementSubject`

## Checklist

- [-] I have added
[tests](https://www.cursorless.org/docs/contributing/test-case-recorder/)
- [-] 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)
- [-] I have not broken the cheatsheet

src/spoken_forms.py

@@ -126,7 +126,10 @@ def handle_new_values(csv_name: str, values: list[SpokenFormEntry]):
         handle_csv(
             "modifier_scope_types.csv",
             pluralize_lists=["scope_type"],
-            extra_allowed_values=["private.fieldAccess"],
+            extra_allowed_values=[
+                "private.fieldAccess",
+                "private.switchStatementSubject",
+            ],
             default_list_name="scope_type",
         ),
         handle_csv(