Use ArgumentNullException.ThrowIfNull helper method

Did a simple search/replace on the whole repo (except the RSSDP project)
This reduces LOC and should improve performance (methods containing a throw statement don't get inlined)

```
if \((\w+) == null\)
\s+\{
\s+throw new ArgumentNullException\((.*)\);
\s+\}
```

```
ArgumentNullException.ThrowIfNull($1);
```

Emby.Server.Implementations/Data/SqliteExtensions.cs

@@ -54,10 +54,7 @@ namespace Emby.Server.Implementations.Data
 
         public static void RunQueries(this SQLiteDatabaseConnection connection, string[] queries)
         {
-            if (queries == null)
-            {
-                throw new ArgumentNullException(nameof(queries));
-            }
+            ArgumentNullException.ThrowIfNull(queries);
 
             connection.RunInTransaction(conn =>
             {