Add supporting themes required for Lotusdocs

themes/hugo-mod-jslibs-dist/popperjs/package/lib/index.d.ts

@@ -0,0 +1,6 @@
+export * from "./types";
+export * from "./enums";
+export * from "./modifiers";
+export { popperGenerator, detectOverflow, createPopper as createPopperBase } from "./createPopper";
+export { createPopper } from "./popper";
+export { createPopper as createPopperLite } from "./popper-lite";