fix(ui): misaligned markdown table rendering (#8336)

Co-authored-by: Tommaso Sciortino <sciortino@gmail.com>

packages/cli/src/ui/utils/InlineMarkdownRenderer.test.ts

@@ -0,0 +1,25 @@
+/**
+ * @license
+ * Copyright 2025 Google LLC
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+import { getPlainTextLength } from './InlineMarkdownRenderer.js';
+import { describe, it, expect } from 'vitest';
+
+describe('getPlainTextLength', () => {
+  it.each([
+    ['**Primary Go', 12],
+    ['*Primary Go', 11],
+    ['**Primary Go**', 10],
+    ['*Primary Go*', 10],
+    ['**', 2],
+    ['*', 1],
+    ['compile-time**', 14],
+  ])(
+    'should measure markdown text length correctly for "%s"',
+    (input, expected) => {
+      expect(getPlainTextLength(input)).toBe(expected);
+    },
+  );
+});