chore: make the theming base constant minifier sare (#12397)

Author: vladitasev

packages/base/src/theming/applyTheme.ts

@@ -9,7 +9,11 @@ import { DEFAULT_THEME } from "../generated/AssetParameters.js";
 import { getCurrentRuntimeIndex } from "../Runtimes.js";
 
 // eslint-disable-next-line
-const BASE_THEME_PACKAGE = "@" + "ui5" + "/" + "webcomponents-theming";
+export let _lib = "ui5";
+// eslint-disable-next-line
+export let _package = "webcomponents-theming";
+// eslint-disable-next-line
+const BASE_THEME_PACKAGE = "@" + _lib + "/" + _package;
 
 const isThemeBaseRegistered = () => {
 	const registeredPackages = getRegisteredPackages();