chore: Update eslint and prettier configurations

.editorconfig

@@ -0,0 +1,14 @@
+# editorconfig.org
+root = true
+
+[*]
+charset = utf-8
+indent_size = 2
+indent_style = space
+insert_final_newline = true
+max_line_length = 120
+quote_type = double
+trim_trailing_whitespace = true
+
+[*.md]
+trim_trailing_whitespace = false