Fix: add -- separator to wtype command

[brutestack]

Summary

• Add -- separator before text argument in wtype command to prevent text starting with - from being misinterpreted as a command flag

Problem

When dictated text begins with a dash (e.g., "- item"), wtype may interpret it as a command-line option, causing unexpected behavior or errors.

Solution

Added the standard -- end-of-options separator before the text argument, which is a common Unix convention to indicate that subsequent arguments should not be treated as options.

Test plan

• Tested with text starting with - character
• Verified normal text input still works correctly