chore: upgrade Prettier and run on full repo

- Move Prettier 1 -> to support `.` glob and built-in parsers
- Move whitespace settings to EditorConfig that Prettier reads
- Expand glob to run on all non-generated files

.editorconfig

@@ -0,0 +1,12 @@
+# EditorConfig is awesome: https://EditorConfig.org
+
+# top-most EditorConfig file
+root = true
+
+[*]
+indent_style = space
+indent_size = 2
+end_of_line = lf
+charset = utf-8
+trim_trailing_whitespace = true
+insert_final_newline = true