style(*): enabled self-closing-tags

[cipchk]

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
[ ] 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
[ ] No

Other information

[ng-alain-bot]

Preview is ready!

[codecov]

Codecov Report

Merging #1635 (891f43b) into master (810ba02) will decrease coverage by 0.03%.
The diff coverage is n/a.

❗ Current head 891f43b differs from pull request most recent head 21d0be4. Consider uploading reports for the commit 21d0be4 to get more accurate results

@@            Coverage Diff             @@
##           master    #1635      +/-   ##
==========================================
- Coverage   95.51%   95.49%   -0.03%     
==========================================
  Files         277      277              
  Lines        8560     8560              
  Branches     1681     1681              
==========================================
- Hits         8176     8174       -2     
- Misses        319      320       +1     
- Partials       65       66       +1     

Files Changed	Coverage Δ
...ages/abc/avatar-list/avatar-list-item.component.ts	100.00% <ø> (ø)
packages/abc/count-down/count-down.component.ts	100.00% <ø> (ø)
...ackages/abc/full-content/full-content.component.ts	100.00% <ø> (ø)
.../abc/global-footer/global-footer-item.component.ts	100.00% <ø> (ø)
packages/abc/media/media.component.ts	98.07% <ø> (ø)
packages/abc/pdf/pdf.component.ts	38.65% <ø> (ø)
packages/abc/se/se-container.component.ts	100.00% <ø> (ø)
packages/abc/sg/sg-container.component.ts	100.00% <ø> (ø)
packages/abc/sg/sg.component.ts	100.00% <ø> (ø)
packages/abc/st/st-filter.component.ts	92.30% <ø> (ø)
... and 15 more

... and 1 file with indirect coverage changes