feat: add internship

2026_Internship/plugin/math/plugin.js

@@ -0,0 +1,17 @@
+import {KaTeX} from "./katex";
+import {MathJax2} from "./mathjax2";
+import {MathJax3} from "./mathjax3";
+import {MathJax4} from "./mathjax4";
+
+const defaultTypesetter = MathJax2;
+
+/*!
+ * This plugin is a wrapper for the MathJax2,
+ * MathJax3, MathJax4 and KaTeX typesetter plugins.
+ */
+export default Plugin = Object.assign( defaultTypesetter(), {
+	KaTeX,
+	MathJax2,
+	MathJax3,
+	MathJax4
+} );