Documentation: Updated community-supported-devices.md to bring 1 new device and organization (#222)

* Update community-supported devices list

This commit adds Motorola Moto G Stylus 5G (2022) [milanf/XT2215] to the list of supported devices.

Additionally, it reorganizes the table to be sorted by kernel version instead of whenever the device was added to the list, improving readability and maintenance.

Tests performed: None (Documentation update)

* Group devices by kernel version in docs

Add kernel-version group headers to Documentation/community-supported-devices.md (5.4, 5.10, 5.15, 6.1, 6.6, 6.12) to improve readability and organization of the device compatibility table. Minor table formatting adjustments were made for a few device rows to align them under the new sections.

Author: GarryStraitYT