Include project notes in the NotesService Get response.

[AhmedZaki99]

As discussed in #47

The NotesService.GetAsync method was neglecting the returned project notes:

public async Task<IEnumerable<Note>> GetAsync(CancellationToken cancellationToken = default)
{
    var response = await TodoistClient.GetResourcesAsync(cancellationToken, ResourceType.Notes).ConfigureAwait(false);

    return response.Notes;
}

The new design returns a new model that contains both collections of notes:

public async Task<NotesInfo> GetAsync(CancellationToken cancellationToken = default)
{
    var response = await TodoistClient.GetResourcesAsync(cancellationToken, ResourceType.Notes).ConfigureAwait(false);

    return new NotesInfo
    {
        ItemNotes = response.Notes,
        ProjectNotes = response.ProjectNotes
    };
}

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
No data about Coverage
0.0% Duplication on New Code

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[olsh]

Thank you! 👍🏻