fix(#23019): display defaultValue when no matched options

[kerm1it]

🤔 This is a ...

• New feature
• Bug fix
• Site / document update
• Component style update
• TypeScript definition update
• Refactoring
• Code style optimization
• Test Case
• Branch merge
• Other (about what?)

🔗 Related issue link

close #23019

💡 Background and solution

📝 Changelog

Language	Changelog
🇺🇸 English	display defaultValue instead of empty string when no matched options
🇨🇳 Chinese	当默认值没有匹配任何选项时展示默认值而不是空字符串

☑️ Self Check before Merge

⚠️ Please check all items below before review. ⚠️

• Doc is updated/provided or not needed
• Demo is updated/provided or not needed
• TypeScript definition is updated/provided or not needed
• Changelog is provided or not needed

[tests-checker]

Could you please add tests to make sure this change works as expected?

[kerm1it]

有些代码被代码格式化自动修改。

[ant-design-bot]

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[kerm1it]

@afc163 好像modal那失败了，是调整了什么吗？

[afc163]

rebase master

[codecov]

Codecov Report

Merging #24058 into master will decrease coverage by 0.01%.
The diff coverage is 80.00%.

@@            Coverage Diff             @@
##           master   #24058      +/-   ##
==========================================
- Coverage   98.83%   98.82%   -0.02%     
==========================================
  Files         364      364              
  Lines        7290     7292       +2     
  Branches     2017     1981      -36     
==========================================
+ Hits         7205     7206       +1     
- Misses         85       86       +1     

Impacted Files	Coverage Δ
components/cascader/index.tsx	97.22% <80.00%> (-0.45%)	⬇️

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[afc163]

Could you fix coverage?

[kerm1it]

Could you fix coverage?

之前在这个测试用例其实已经覆盖了，但是就是没有执行，然而在本地就会执行。

it('should select item immediately when searching and pressing down arrow key', () => {
    const wrapper = mount(<Cascader options={options} showSearch={{ filter }} />);
    wrapper.find('input').simulate('click');
    wrapper.find('input').simulate('change', { target: { value: 'a' } });
    expect(wrapper.find('.ant-cascader-menu-item').length).toBe(2);
    expect(wrapper.find('.ant-cascader-menu-item-active').length).toBe(0);
    wrapper.find('input').simulate('keyDown', {
      keyCode: KeyCode.DOWN,
    });
    expect(wrapper.find('.ant-cascader-menu-item-active').length).toBe(1);
  });

这是之前的PR#22216