fix(module:menu): ellipsis menu title content if overflow

[Laffery]

PR Checklist

Please check if your PR fulfills the following requirements:

• The commit message follows our guidelines: https://github.com/NG-ZORRO/ng-zorro-antd/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?

[x] Bugfix
[ ] 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: #8051

What is the new behavior?

Does this PR introduce a breaking change?

[ ] Yes
[ ] No

Other information

[zorro-bot]

This preview will be available after the AzureCI is passed.

[codecov]

Codecov Report

Merging #8055 (5a95a98) into master (24961cc) will increase coverage by 0.00%.
The diff coverage is 100.00%.

❗ Current head 5a95a98 differs from pull request most recent head 9996520. Consider uploading reports for the commit 9996520 to get more accurate results

@@           Coverage Diff           @@
##           master    #8055   +/-   ##
=======================================
  Coverage   91.66%   91.66%           
=======================================
  Files         518      518           
  Lines       17786    17786           
  Branches     2808     2808           
=======================================
+ Hits        16303    16304    +1     
+ Misses       1181     1180    -1     
  Partials      302      302           

Files Changed	Coverage Δ
components/menu/menu.module.ts	100.00% <ø> (ø)
components/menu/submenu-title.component.ts	100.00% <ø> (ø)
components/menu/menu-item.component.ts	77.94% <100.00%> (ø)
components/menu/menu.directive.ts	93.93% <100.00%> (ø)
components/menu/submenu.component.ts	100.00% <100.00%> (ø)

... and 1 file with indirect coverage changes