Progress Overhaul + Profile Page and a LOT more! (#4262)

Co-authored-by: Amelia <77553571+Fesaa@users.noreply.github.com>
Co-authored-by: Robbie Davis <robbie@therobbiedavis.com>

API/Data/ManualMigrations/v0.8.4/ManualMigrateEncodeSettings.cs

@@ -1,11 +1,8 @@
 using System;
 using System.Collections.Generic;
-using System.Linq;
 using System.Threading.Tasks;
-using API.Entities;
 using API.Entities.Enums;
 using API.Entities.History;
-using Flurl.Util;
 using Kavita.Common.EnvironmentInfo;
 using Microsoft.EntityFrameworkCore;
 using Microsoft.Extensions.Logging;