Keep Outlook table suppression runtime-only

[ChenZ2000]

Closes #4.

This keeps the current Outlook-specific table suppression behavior, but makes it runtime-only.

What it does:

• snapshot the user's real documentFormatting values before applying the Outlook override
• restore them on Outlook app lose focus
• restore them before config save / reset
• re-apply the Outlook override after save only if Outlook is still active

This prevents nvda.ini or profile pollution while preserving the current Outlook behavior.

Validation:

• python -m py_compile addon/appModules/outlook.py

Prepared with Codex using GPT-5.4. Thank you for reviewing this patch.