Changed the handling of start, stop, and update timestamp fields in ReportRowInnerTimeEntry data structure from strings to DateTime objects in the API layer. Also updated the data persisting in DB layer to use these new datetime objects and introduced additional columns for server_updated_at, server_deleted_at and tags.
Significant renaming and data type changes to Toggl API types occurred to improve identification and consistency. For example, 'Current' is renamed to 'TimeEntry', 'ProjectClient' is renamed to 'Client', and 'TogglQuery' is renamed to 'TogglReportQuery'. Changes affected multiple sections of the codebase, including routes and DB access.
Changed the name of 'ReportEntry' to 'ReportRow' for clarity. Also simplified the request builder in the TogglApiClient by implementing a 'make_request' function which helps in handling rate limiting. The function is then used in various methods of the TogglApiClient.
