style: update .editorconfig

.editorconfig

@@ -1,10 +1,26 @@
 root = true
 
 [*]
+max_line_length = 80
+end_of_line = lf
+charset = utf-8
+insert_final_newline = true
 indent_style = tab
 indent_size = 3
+tab_width = 3
 trim_trailing_whitespace = true
-insert_final_newline = true
+
+[*.{yml,yaml,scm}]
+indent_style = space
+indent_size = 2
+tab_width = 2
+
+[*.py]
+indent_style = space
+indent_size = 4
+tab_width = 4
 
 [*.md]
+indent_size = 4
+tab_width = 4
 trim_trailing_whitespace = false