.NET 7 + Spring Cleaning (#1677)

* Updated to net7.0

* Updated GA to .net 7

* Updated System.IO.Abstractions to use New factory.

* Converted Regex into SourceGenerator in Parser.

* Updated more regex to source generators.

* Enabled Nullability and more regex changes throughout codebase.

* Parser is 100% GeneratedRegexified

* Lots of nullability code

* Enabled nullability for all repositories.

* Fixed another unit test

* Refactored some code around and took care of some todos.

* Updating code for nullability and cleaning up methods that aren't used anymore. Refctored all uses of Parser.Normalize() to use new extension

* More nullability exercises. 500 warnings to go.

* Fixed a bug where custom file uploads for entities wouldn't save in webP.

* Nullability is done for all DTOs

* Fixed all unit tests and nullability for the project. Only OPDS is left which will be done with an upcoming OPDS enhancement.

* Use localization in book service after validating

* Code smells

* Switched to preview build of swashbuckle for .net7 support

* Fixed up merge issues

* Disable emulate comic book when on single page reader

* Fixed a regression where double page renderer wouldn't layout the images correctly

* Updated to swashbuckle which support .net 7

* Fixed a bad GA action

* Some code cleanup

* More code smells

* Took care of most of nullable issues

* Fixed a broken test due to having more than one test run in parallel

* I'm really not sure why the unit tests are failing or are so extremely slow on .net 7

* Updated all dependencies

* Fixed up build and removed hardcoded framework from build scripts. (this merge removes Regex Source generators). Unit tests are completely busted.

* Unit tests and code cleanup. Needs shakeout now.

* Adjusted Series model since a few fields are not-nullable. Removed dead imports on the project.

* Refactored to use Builder pattern for all unit tests.

* Switched nullability down to warnings. It wasn't possible to switch due to constraint issues in DB Migration.

API/DTOs/Device/CreateDeviceDto.cs

@@ -1,5 +1,4 @@
 using System.ComponentModel.DataAnnotations;
-using System.Runtime.InteropServices;
 using API.Entities.Enums.Device;
 
 namespace API.DTOs.Device;
@@ -7,14 +6,14 @@ namespace API.DTOs.Device;
 public class CreateDeviceDto
 {
     [Required]
-    public string Name { get; set; }
+    public string Name { get; set; } = default!;
     /// <summary>
     /// Platform of the device. If not know, defaults to "Custom"
     /// </summary>
     [Required]
     public DevicePlatform Platform { get; set; }
     [Required]
-    public string EmailAddress { get; set; }
+    public string EmailAddress { get; set; } = default!;
 
 
 }

API/DTOs/Device/DeviceDto.cs

@@ -17,11 +17,11 @@ public class DeviceDto
     /// </summary>
     /// <remarks>If this device is web, this will be the browser name</remarks>
     /// <example>Pixel 3a, John's Kindle</example>
-    public string Name { get; set; }
+    public string Name { get; set; } = default!;
     /// <summary>
     /// An email address associated with the device (ie Kindle). Will be used with Send to functionality
     /// </summary>
-    public string EmailAddress { get; set; }
+    public string EmailAddress { get; set; } = default!;
     /// <summary>
     /// Platform (ie) Windows 10
     /// </summary>

API/DTOs/Device/SendToDeviceDto.cs

@@ -5,5 +5,5 @@ namespace API.DTOs.Device;
 public class SendToDeviceDto
 {
     public int DeviceId { get; set; }
-    public IReadOnlyList<int> ChapterIds { get; set; }
+    public IReadOnlyList<int> ChapterIds { get; set; } = default!;
 }

API/DTOs/Device/UpdateDeviceDto.cs

@@ -8,12 +8,12 @@ public class UpdateDeviceDto
     [Required]
     public int Id { get; set; }
     [Required]
-    public string Name { get; set; }
+    public string Name { get; set; } = default!;
     /// <summary>
     /// Platform of the device. If not know, defaults to "Custom"
     /// </summary>
     [Required]
     public DevicePlatform Platform { get; set; }
     [Required]
-    public string EmailAddress { get; set; }
+    public string EmailAddress { get; set; } = default!;
 }