actually run the new test and remove unrelated tweak

package.json

@@ -153,7 +153,7 @@
   "jest": {
     "testEnvironment": "jest-environment-jsdom-sixteen",
     "testMatch": [
-      "<rootDir>/test/**/*-test.js"
+      "<rootDir>/test/**/*-test.[tj]s"
     ],
     "setupFilesAfterEnv": [
       "<rootDir>/node_modules/matrix-react-sdk/test/setupTests.js"

src/@types/global.d.ts

@@ -35,11 +35,6 @@ type ElectronChannel =
 
 declare global {
     interface Window {
-        Modernizr: ModernizrAPI & FeatureDetects;
-        Olm: {
-            init: () => Promise<void>;
-        };
-
         mxSendRageshake: (text: string, withLogs?: boolean) => void;
         matrixChat: ReturnType<Renderer>;
 

test/unit-tests/url_utils-test.ts

@@ -39,4 +39,12 @@ describe("url_utils.ts", function() {
             "foo": "bar",
         });
     });
+
+    describe("parseQs with arrays", function() {
+        location.search = "?via=s1&via=s2&via=s2&foo=bar";
+        expect(parseQs(location)).toEqual({
+            "via": ["s1", "s2", "s2"],
+            "foo": "bar",
+        });
+    });
 });