dependencies and code cleanup (#2117)

* fix validation in new form layout

* pin mediatr to last oss version

* update dependencies

* cleanup code in core

* cleanup code in ffmpeg

* cleanup code in infra

* cleanup code in scanner

* cleanup code in application

* cleanup main code

* cleanup test code

* solution-wide code cleanup

ErsatzTV.Core/Iptv/ChannelGuide.cs

@@ -32,8 +32,8 @@ public class ChannelGuide
 
         xml.WriteRaw(_channelsFragment);
 
-        foreach ((string channelNumber, string channelDataFragment) in _channelDataFragments.OrderBy(
-                     kvp => decimal.Parse(kvp.Key, CultureInfo.InvariantCulture)))
+        foreach ((string channelNumber, string channelDataFragment) in _channelDataFragments.OrderBy(kvp =>
+                     decimal.Parse(kvp.Key, CultureInfo.InvariantCulture)))
         {
             xml.WriteRaw(channelDataFragment);
         }

ErsatzTV.Core/Iptv/ChannelIdentifier.cs

@@ -4,16 +4,13 @@ namespace ErsatzTV.Core.Iptv;
 
 public static class ChannelIdentifier
 {
-    public static string LegacyFromNumber(string channelNumber)
-    {
-        return $"{channelNumber}.etv";
-    }
+    public static string LegacyFromNumber(string channelNumber) => $"{channelNumber}.etv";
 
     public static string FromNumber(string channelNumber)
     {
         // get rid of any decimal (only two are allowed)
-        int number = (int)(decimal.Parse(channelNumber, CultureInfo.InvariantCulture) * 100);
-        int id = 0;
+        var number = (int)(decimal.Parse(channelNumber, CultureInfo.InvariantCulture) * 100);
+        var id = 0;
         while (number != 0)
         {
             id += number % 10 + 48;

ErsatzTV.Core/Iptv/ChannelPlaylist.cs

@@ -1,5 +1,4 @@
 using System.Globalization;
-using System.Net;
 using System.Text;
 using ErsatzTV.Core.Domain;