Add Keychron Q11

[Stuk]

• [x] Keyboard name: Keychron Q11 QMK
• [x] Url to vector graphic (e.g. svg, pdf, etc.) of switch plate: https://cdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_Q11_User_Manual.pdf?v=1677047413 on page 3
• [x] Min and max number of keys: 89
• [ ] Url to keyboard project source (if available): N/A
• [x] Url to store to buy keyboard (if available): https://www.keychron.com/products/keychron-q11-qmk-custom-mechanical-keyboard

Thank you!