Added insertion delimiter to Talon command (#1789)

Fixes #1785

## Checklist

- [x] 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

Author: AndreasArvidsson

packages/cursorless-vscode-e2e/src/suite/fixtures/recorded/languages/talon/cloneCommand.yml

@@ -0,0 +1,29 @@
+languageId: talon
+command:
+  version: 6
+  spokenForm: clone command
+  action:
+    name: insertCopyAfter
+    target:
+      type: primitive
+      modifiers:
+        - type: containingScope
+          scopeType: {type: command}
+  usePrePhraseSnapshot: true
+initialState:
+  documentContents: |-
+    foo:
+        "bar"
+  selections:
+    - anchor: {line: 0, character: 0}
+      active: {line: 0, character: 0}
+  marks: {}
+finalState:
+  documentContents: |-
+    foo:
+        "bar"
+    foo:
+        "bar"
+  selections:
+    - anchor: {line: 2, character: 0}
+      active: {line: 2, character: 0}

queries/talon.scm

@@ -119,9 +119,12 @@
 
 ;;!! slap: key(enter)
 ;;!  ^^^^^^^^^^^^^^^^
-(command_declaration
-  right: (_) @_.interior
-) @command
+(
+  (command_declaration
+    right: (_) @_.interior
+  ) @command
+  (#insertion-delimiter! @command "\n")
+)
 
 (source_file
   (declarations) @command.iteration