Consolidate the pass rule (#146)

Co-authored-by: Colton Loftus <[email protected]>
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

GPT/gpt.talon

@@ -8,12 +8,10 @@
 {user.model} <user.modelPrompt> [{user.modelSource}] [{user.modelDestination}]$:
     user.gpt_apply_prompt(modelPrompt, modelSource or "", modelDestination or "")
 
-# Passes a model source to a model destination unchanged
-{user.model} pass {user.modelSource} [{user.modelDestination}]$:
-    user.gpt_pass(modelSource, modelDestination or "")
-
-# Pastes the model destination at the cursor position
-{user.model} pass {user.modelDestination}$: user.gpt_pass("", modelDestination)
+# Passes a model source to a model destination unchanged.
+# If the source is omitted, default to selected text; If the destination is omitted default to paste
+{user.model} pass ({user.modelSource} | {user.modelDestination} | {user.modelSource} {user.modelDestination})$:
+    user.gpt_pass(modelSource or "", modelDestination or "")
 
 # Select the last GPT response so you can edit it further
 {user.model} take response: user.gpt_select_last()