refactor namespaces and imports (#670)

* re-namespace

* optimize usings

* more usings

* more of the same

* more implicit/global usings

* cleanup all usings

* minor fixes

ErsatzTV.Core/Errors/ChannelSessionAlreadyActive.cs

@@ -1,9 +1,8 @@
-namespace ErsatzTV.Core.Errors
+namespace ErsatzTV.Core.Errors;
+
+public class ChannelSessionAlreadyActive : BaseError
 {
-    public class ChannelSessionAlreadyActive : BaseError
+    public ChannelSessionAlreadyActive() : base("Channel already has HLS session")
     {
-        public ChannelSessionAlreadyActive() : base("Channel already has HLS session")
-        {
-        }
     }
-}
+}

ErsatzTV.Core/Errors/MediaSourceRecentlyScanned.cs

@@ -1,10 +1,9 @@
-namespace ErsatzTV.Core.Errors
+namespace ErsatzTV.Core.Errors;
+
+public class MediaSourceRecentlyScanned : BaseError
 {
-    public class MediaSourceRecentlyScanned : BaseError
+    public MediaSourceRecentlyScanned(string folder) :
+        base($"Media source {folder} was already scanned recently; skipping scan.")
     {
-        public MediaSourceRecentlyScanned(string folder) :
-            base($"Media source {folder} was already scanned recently; skipping scan.")
-        {
-        }
     }
-}
+}

ErsatzTV.Core/Errors/PlayoutItemDoesNotExistOnDisk.cs

@@ -1,9 +1,8 @@
-namespace ErsatzTV.Core.Errors
+namespace ErsatzTV.Core.Errors;
+
+public class PlayoutItemDoesNotExistOnDisk : BaseError
 {
-    public class PlayoutItemDoesNotExistOnDisk : BaseError
+    public PlayoutItemDoesNotExistOnDisk(string path) : base($"Playout item does not exist on disk\n{path}")
     {
-        public PlayoutItemDoesNotExistOnDisk(string path) : base($"Playout item does not exist on disk\n{path}")
-        {
-        }
     }
-}
+}

ErsatzTV.Core/Errors/UnableToLocatePlayoutItem.cs

@@ -1,9 +1,8 @@
-namespace ErsatzTV.Core.Errors
+namespace ErsatzTV.Core.Errors;
+
+public class UnableToLocatePlayoutItem : BaseError
 {
-    public class UnableToLocatePlayoutItem : BaseError
+    public UnableToLocatePlayoutItem() : base("Unable to locate playout item")
     {
-        public UnableToLocatePlayoutItem() : base("Unable to locate playout item")
-        {
-        }
     }
-}
+}