Updated list of supported cloud drives (#785)

Co-authored-by: Lamparter <[email protected]>

Author: marcofranzen99

src/routes/docs/features/cloud-drives/+page.md

@@ -33,4 +33,7 @@ Files integrates with various cloud providers by detecting and displaying their
 | Autodesk         | https://drive.autodesk.com                                                        |
 | ownCloud         | https://owncloud.com/desktop-app                                                  |
 | Lucid Link       | https://www.lucidlink.com/download                                                |
-| Infomaniak kDrive| https://www.infomaniak.com/kdrive                                                 |
+| Infomaniak kDrive| https://www.infomaniak.com/kdrive                                                 |
+| Proton Drive     | https://proton.me/drive/download                                                  |
+| MagentaCLOUD     | https://cloud.telekom-dienste.de/software-apps                                    |
+| Sync.com         | https://www.sync.com/install/                                                     |