fix(editor): add footnote url markdown preprocessor to avoid link node parsing (#11888)

Closes: [BS-3282](https://linear.app/affine-design/issue/BS-3282/预处理-footnote-definition-中的-url-避免-markdown-link-node-parsing)

blocksuite/affine/blocks/bookmark/vitest.config.ts

@@ -0,0 +1,25 @@
+import { defineConfig } from 'vitest/config';
+
+export default defineConfig({
+  esbuild: {
+    target: 'es2018',
+  },
+  test: {
+    browser: {
+      enabled: true,
+      headless: true,
+      name: 'chromium',
+      provider: 'playwright',
+      isolate: false,
+      providerOptions: {},
+    },
+    include: ['src/__tests__/**/*.unit.spec.ts'],
+    testTimeout: 500,
+    coverage: {
+      provider: 'istanbul',
+      reporter: ['lcov'],
+      reportsDirectory: '../../../.coverage/bookmark',
+    },
+    restoreMocks: true,
+  },
+});