change indent to sensible value (#1540)

.editorconfig

@@ -1,3 +1,5 @@
+# Check http://editorconfig.org for more information
+# This is the main config file for this project:
 root = true
 
 [*]
@@ -6,4 +8,13 @@ trim_trailing_whitespace = true
 end_of_line = lf
 indent_style = space
 insert_final_newline = true
-indent_size = 2
+indent_size = 2
+
+[*.{rs,py,pyi}]
+indent_size = 4
+
+[*.snap]
+trim_trailing_whitespace = false
+
+[*.md]
+max_line_length = 100