React v19 update

client/.eslintrc.js

@@ -72,7 +72,7 @@ module.exports = {
         // Many API fields and generated types use camelcase
         camelcase: "off",
         // Allow {} type - used extensively in existing codebase
-        "@typescript-eslint/ban-types": ["error", { types: { "{}": false } }],
+        "@typescript-eslint/no-empty-object-type": "off",
       },
     },
     {

client/app/__tests__/mocks.js

@@ -1,5 +1,3 @@
-import MockDate from "mockdate";
+const { installCommonJsdomShims } = require("../../../test-support/jest/jsdom-shims");
 
-const date = new Date("2000-01-01T02:00:00.000");
-
-MockDate.set(date);
+installCommonJsdomShims();