Linting, so much linting

I installed and configured stylelint and eslint, and added an editorconfig as well as a vscode recommended extensions file.

The reason the diff is so large is I ran the linters and fixed all the linting issues.

.editorconfig

@@ -0,0 +1,13 @@
+root = true
+
+[*]
+quote_type = single
+indent_style = space
+indent_size = 2
+end_of_line = lf
+charset = utf-8
+trim_trailing_whitespace = false
+insert_final_newline = false
+
+[*.md]
+indent_size = 4