Top 3 cloud storages used in MMEX

[guangong]

after upgrading to android v2024.01.01.1008, we could collect some very basic cloud storage information.

here we go the top 3 so far
1. GoogleDrive
2. oneDrive
3. Dropbox

we also found Documents and Downloads are taking up the biggest portion (over 1/3), this is still external storage to Android MMEX and would work closely with sync services as Syncthing to share the files among different platforms and devices.