Enhancement: Set charset for all files to UTF-8

Author: localheinz

.editorconfig

@@ -1,10 +1,10 @@
 root = true
 
 [*]
+charset = utf-8
 insert_final_newline = true
 
 [*.yaml]
-charset = utf-8
 indent_size = 2
 indent_style = space
 trim_trailing_whitespace = true