feat: prefer hash when importing libraries & expose importLibrary (#3320)

src/constants.ts

@@ -116,3 +116,11 @@ export const MODES = {
 };
 
 export const THEME_FILTER = cssVariables.themeFilter;
+
+export const URL_QUERY_KEYS = {
+  addLibrary: "addLibrary",
+} as const;
+
+export const URL_HASH_KEYS = {
+  addLibrary: "addLibrary",
+} as const;