refactor(form): refining low-frequency widgets

[cipchk]

Breaking Changes

Non-built-in modules, Should be import CascaderWidgetModule in json-schema.module.ts.

• autocomplete
• cascader
• mention
• rate
• slider
• tag
• transfer
• tree-select
• time
• upload
• color
• qr-code
• segmented

close ng-alain/ng-alain#2093

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)
[x] 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

[ng-alain-bot]

Preview is ready!

[codecov]

Codecov Report

Merging #1668 (398b8b5) into master (b7dbc68) will increase coverage by 0.00%.
The diff coverage is 97.70%.

❗ Current head 398b8b5 differs from pull request most recent head e1f0e3e. Consider uploading reports for the commit e1f0e3e to get more accurate results

@@           Coverage Diff           @@
##           master    #1668   +/-   ##
=======================================
  Coverage   95.53%   95.54%           
=======================================
  Files         282      299   +17     
  Lines        8758     8820   +62     
  Branches     1649     1654    +5     
=======================================
+ Hits         8367     8427   +60     
- Misses        323      325    +2     
  Partials       68       68           

Files	Coverage Δ
packages/form/src/module.ts	100.00% <ø> (ø)
packages/form/src/widgets/nz-widget.registry.ts	100.00% <ø> (ø)
packages/form/widgets/autocomplete/index.ts	100.00% <100.00%> (ø)
packages/form/widgets/autocomplete/widget.ts	100.00% <100.00%> (ø)
packages/form/widgets/cascader/index.ts	100.00% <100.00%> (ø)
packages/form/widgets/cascader/widget.ts	100.00% <100.00%> (ø)
packages/form/widgets/color/index.ts	100.00% <100.00%> (ø)
packages/form/widgets/color/widget.ts	100.00% <100.00%> (ø)
packages/form/widgets/mention/index.ts	100.00% <100.00%> (ø)
packages/form/widgets/mention/widget.ts	94.73% <100.00%> (ø)
... and 18 more

... and 1 file with indirect coverage changes