This PR fixes an issue where pressing the Enter key via the `press Enter` command had no effect on web pages, even though the command executed successfully without errors.
## Problem
The Chrome DevTools Protocol `Input.dispatchKeyEvent` requires a `text` field in `keyDown` events for certain keys to trigger their default browser actions. Without this field, keys like Enter don't actually submit forms or perform their expected actions.
## Changes
- Added new `key_text()` function that returns the appropriate text value for special keys:
- Enter returns `"\r"` (carriage return)
- Tab returns `"\t"` (tab character)
- Space returns `" "` (space character)
- Single printable characters return themselves
- Non-printable keys (Escape, Arrow keys, etc.) return `None`
- Modified `press_key_with_modifiers()` to populate both `text` and `unmodified_text` fields in the CDP keyDown event
- Added comprehensive unit tests for the new functionality
## Implementation Details
The fix ensures that when pressing Enter on a filled search box, the form actually submits as expected, matching the behavior of manually pressing the Enter key.
Fixes#966
Chris Tate
c5020f2b89