feat: Implement interactive shortcut selection

This commit enhances your experience for setting a keyboard shortcut. Instead of typing the shortcut as a string, you are now prompted to press the desired key combination directly.

The `src/config.py` module has been updated to:
- Use `keyboard.read_hotkey()` to capture the key combination you press.
- Display the captured shortcut for confirmation.
- Save the shortcut only after you confirm it is correct.

This provides a more intuitive and less error-prone way for you to configure your preferred shortcut.

run.bat

@@ -6,6 +6,6 @@ REM Activate the virtual environment
 call venv\Scripts\activate.bat
 
 REM Run your main Python script (replace main.py with your script name if different)
-start "OopsWrongLang" /B pythonw src\main.pyw
+start "OopsWrongLang" /B python src\main.pyw
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