Changed folder structure on remarkable to not include gDrive root, resolves #6

[oyvindlr]

Changed sync so sync folder in gDrive is not part of folder structure on remarkable. For example: Synced folder on google drive: /foo/bar File to be synced: /foo/bar/myfile.pdf

Synced folder on remarkable: /Google Drive

Before, the file would end up in /Google Drive/bar/myfile.pdf Now, it will end up in /Google Drive/myfile.pdf

Folder structure under the sync folder is still kept, so /foo/bar/foo/myfile.pdf will end up in /Google Drive/foo/myfile.pdf.