add v2 ffmpeg profile page (#768)

* wip

* remove transcode property; use i18n

* add api

* use computed table headers for i18n

ErsatzTV.Core/Api/Channels/ChannelResponseModel.cs

@@ -1,9 +1,11 @@
-namespace ErsatzTV.Core.Api.Channels;
+using Newtonsoft.Json;
+
+namespace ErsatzTV.Core.Api.Channels;
 
 public record ChannelResponseModel(
     int Id,
     string Number,
     string Name,
-    string FFmpegProfile,
+    [property: JsonProperty("ffmpegProfile")] string FFmpegProfile,
     string Language,
     string StreamingMode);

ErsatzTV.Core/Api/FFmpegProfiles/FFmpegProfileResponseModel.cs

@@ -0,0 +1,8 @@
+namespace ErsatzTV.Core.Api.FFmpegProfiles;
+
+public record FFmpegProfileResponseModel(
+    int Id,
+    string Name,
+    string Resolution,
+    string Video,
+    string Audio);