Insert final newline to all files

.editorconfig

@@ -5,6 +5,7 @@ root = true
 [*]
 
 charset = utf-8
+insert_final_newline = true
 
 # Formatting - remove any whitespace characters preceding newline characters
 trim_trailing_whitespace = true
@@ -287,4 +288,4 @@ dotnet_diagnostic.CA2200.severity = warning
 dotnet_diagnostic.CA1827.severity = warning
 
 # CA1822: This complains to make functions static. Static is evil. Don't let it complain.
-dotnet_diagnostic.CA1822.severity = none
+dotnet_diagnostic.CA1822.severity = none