Fix tests

Signed-off-by: Michael Telatynski <7t3chguy@gmail.com>

test/app-tests/server-config-test.ts

@@ -40,6 +40,7 @@ describe("Loading server config", function () {
             },
         });
         fetchMock.get("/version", "1.10.13");
+        fetchMock.catch(404);
     });
 
     it("should use the default_server_config", async function () {

test/app-tests/wrapper-test.tsx

@@ -47,6 +47,7 @@ describe("Wrapper", () => {
             },
         });
         fetchMock.get("/version", "1.10.13");
+        fetchMock.catch(404);
     });
 
     it("wrap a matrix chat with header and footer", async () => {