Rename cross-unit to export-internal

ts/deck-options/index.ts

@@ -5,7 +5,8 @@
 @typescript-eslint/no-explicit-any: "off",
  */
 
-import "sveltelib/cross-unit";
+import "sveltelib/export-internal";
+
 import { getDeckOptionsInfo, DeckOptionsState } from "./lib";
 import { setupI18n, ModuleName } from "lib/i18n";
 import { checkNightMode } from "lib/nightmode";

ts/editor/index.ts

@@ -6,7 +6,7 @@
 @typescript-eslint/no-explicit-any: "off",
  */
 
-import "sveltelib/cross-unit";
+import "sveltelib/export-internal";
 
 import { filterHTML } from "html-filter";
 import { updateActiveButtons } from "./toolbar";