chore: replace karma with jest

src-ui/setup-jest.ts

@@ -0,0 +1,30 @@
+import 'jest-preset-angular/setup-jest';
+
+/* global mocks for jsdom */
+const mock = () => {
+  let storage: { [key: string]: string } = {};
+  return {
+    getItem: (key: string) => (key in storage ? storage[key] : null),
+    setItem: (key: string, value: string) => (storage[key] = value || ''),
+    removeItem: (key: string) => delete storage[key],
+    clear: () => (storage = {}),
+  };
+};
+
+Object.defineProperty(window, 'localStorage', { value: mock() });
+Object.defineProperty(window, 'sessionStorage', { value: mock() });
+Object.defineProperty(window, 'getComputedStyle', {
+  value: () => ['-webkit-appearance'],
+});
+
+Object.defineProperty(document.body.style, 'transform', {
+  value: () => {
+    return {
+      enumerable: true,
+      configurable: true,
+    };
+  },
+});
+
+/* output shorter and more meaningful Zone error stack traces */
+// Error.stackTraceLimit = 2;