Revert "Use default json import (anuraghazra#2820)" (anuraghazra#2829)

This reverts commit 1474a3a.

src/cards/wakatime-card.js

@@ -10,7 +10,17 @@ import {
 } from "../common/utils.js";
 import { getStyles } from "../getStyles.js";
 import { wakatimeCardLocales } from "../translations.js";
-import languageColors from "../common/languageColors.json";
+
+/** Import language colors.
+ *
+ * @description Here we use the workaround found in
+ * https://stackoverflow.com/questions/66726365/how-should-i-import-json-in-node
+ * since vercel is using v16.14.0 which does not yet support json imports without the
+ * --experimental-json-modules flag.
+ */
+import { createRequire } from "module";
+const require = createRequire(import.meta.url);
+const languageColors = require("../common/languageColors.json"); // now works
 
 /**
  * Creates the no coding activity SVG node.