feat(theme:layout-default): add layout-default-top-menu-item

[cipchk]

• close 建议增加顶部和左侧联动导航菜单功能 ng-alain#2343

PR Checklist

Please check if your PR fulfills the following requirements:

• The commit message follows our guidelines: https://github.com/ng-alain/delon/blob/master/CONTRIBUTING.md#commit
• Tests for the changes have been added (for bug fixes / features)
• Docs have been added / updated (for bug fixes / features)

PR Type

What kind of change does this PR introduce?

[ ] Bugfix
[x] Feature
[ ] Code style update (formatting, local variables)
[ ] Refactoring (no functional changes, no api changes)
[ ] Build related changes
[ ] CI related changes
[ ] Documentation content changes
[ ] Application (the showcase website) / infrastructure changes
[ ] Other... Please describe:

What is the current behavior?

Issue Number: N/A

What is the new behavior?

Does this PR introduce a breaking change?

[ ] Yes
[x] No

Other information

[codecov]

Codecov Report

Merging #1570 (d8c54d6) into master (f8c0589) will decrease coverage by 0.02%.
The diff coverage is 33.33%.

@@            Coverage Diff             @@
##           master    #1570      +/-   ##
==========================================
- Coverage   95.54%   95.52%   -0.03%     
==========================================
  Files         275      276       +1     
  Lines        8484     8487       +3     
  Branches     1572     1572              
==========================================
+ Hits         8106     8107       +1     
- Misses        318      320       +2     
  Partials       60       60              

Impacted Files	Coverage Δ
packages/theme/layout-default/layout.module.ts	100.00% <ø> (ø)
...kages/theme/layout-default/layout-top-menu-item.ts	33.33% <33.33%> (ø)

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[ng-alain-bot]

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