routie dev init since i didn't adhere to any proper guidance up until now

frontend/node_modules/eslint-plugin-perfectionist/dist/utils/range-contains-range.js

@@ -0,0 +1,11 @@
+/**
+ * Check if a range contains another range.
+ *
+ * @param includingRange - The range that may include the other range.
+ * @param subRange - The range to check if it is included.
+ * @returns True if the includingRange contains the subRange, false otherwise.
+ */
+function rangeContainsRange(includingRange, subRange) {
+  return includingRange[0] <= subRange[0] && includingRange[1] >= subRange[1]
+}
+export { rangeContainsRange }