Update .editorconfig

Author: pythoninthegrass

.editorconfig

@@ -3,10 +3,9 @@
 # top-most EditorConfig file
 root = true
 
-# Unix-style newlines, charset, whitespace cleanup
+# Unix-style newlines and whitespace cleanup
 [*]
 end_of_line = lf
-charset = utf-8
 insert_final_newline = true
 trim_trailing_whitespace = true
 insert_final_newline = true
@@ -20,12 +19,16 @@ trim_trailing_whitespace = false
 indent_style = tab
 indent_size = 4
 
+# Set default charset
+[*.{html,xml,js,css,py}]
+charset = utf-8
+
 # python
 [*.py]
 indent_style = space
 indent_size = 4
 
-# webdev + terraform
-[*.{html,xml,js,css,json,cfg,tf,tfvars,yml,yaml}]
+# webdev et al
+[*.{html,xml,js,css,json,gql,lua,tf,tfvars,yml,yaml}]
 indent_style = space
 indent_size = 2