fix: wallet balance

- fiat balance display
- currency formatting
- added tests for WalletBalance
- added test coverage scripts
- bumped haveno-ts to v0.0.5

---

Reviewed-by: localredhead

packages/preload/vitest.coverage.config.js

@@ -0,0 +1,32 @@
+// =============================================================================
+//  Copyright 2022 Haveno
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+// =============================================================================
+
+/**
+ * Config for global end-to-end tests
+ * placed in project root tests folder
+ * @type {import('vite').UserConfig}
+ * @see https://vitest.dev/config/
+ */
+const config = {
+  test: {
+    include: ["./src/**/*.{test,spec}.{ts,tsx}"],
+    coverage: {
+      reporter: ["html"],
+    },
+  },
+};
+
+export default config;