fix(legacy): prevent add/remove suffixes while InputNumber is readonly

[Andronzi]

Closes #8528

[lumberjack-bot]

Pull request was closed ✔️

All saved screenshots (for current PR) were deleted 🗑️

[codecov]

Codecov Report

Attention: Patch coverage is 50.00000% with 1 line in your changes missing coverage. Please review.

Project coverage is 67.05%. Comparing base (43c0ebb) to head (2950aeb).
Report is 1347 commits behind head on main.

Files	Patch %	Lines
.../components/input-number/input-number.component.ts	50.00%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #8568      +/-   ##
==========================================
- Coverage   70.19%   67.05%   -3.14%     
==========================================
  Files        1460     1171     -289     
  Lines       15934    15047     -887     
  Branches     2292     2052     -240     
==========================================
- Hits        11185    10090    -1095     
- Misses       4369     4807     +438     
+ Partials      380      150     -230     

Flag	Coverage Δ
summary	67.05% <50.00%> (-3.14%)	⬇️

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[splincode]

@Andronzi could you add backport to v3.x?

[bundlemon]

BundleMon

Unchanged files (5)

Status	Path	Size	Limits
✅	demo/browser/main.(hash).js	280.68KB	+10%
✅	demo/browser/vendor.(hash).js	216.25KB	+10%
✅	demo/browser/runtime.(hash).js	41.52KB	+10%
✅	demo/browser/styles.(hash).css	11.56KB	+10%
✅	demo/browser/polyfills.(hash).js	11.21KB	+10%

Total files change +1B 0%

Unchanged groups (1)

Status	Path	Size	Limits
✅	demo/browser/*..js	6.79MB	-

Final result: ✅

View report in BundleMon website ➡️

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Current branch size history | Target branch size history

[Andronzi]

@Andronzi could you add backport to v3.x?

It's ready. Forked just a main, so pushed v3 branch to my fork from remote :-)