MQTT : Add better validation errors on create device form

[Pierre-Gilles]

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Description of change

Fix #2232

[cloudflare-workers-and-pages]

Deploying gladys-plus with    Cloudflare Pages

Latest commit:	127d10c
Status:	✅  Deploy successful!
Preview URL:	https://919f22bc.gladys-plus.pages.dev
Branch Preview URL:	https://improve-validation-mqtt-devi.gladys-plus.pages.dev

View logs

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 98.56%. Comparing base (d2859f2) to head (127d10c).
Report is 1 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #2244   +/-   ##
=======================================
  Coverage   98.56%   98.56%           
=======================================
  Files         878      878           
  Lines       14550    14550           
=======================================
  Hits        14341    14341           
  Misses        209      209           

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[relativeci]

#3055 Bundle Size — 10.66MiB (+0.03%).

127d10c(current) vs d2859f2 master#3053(baseline)

Warning

Bundle contains 2 duplicate packages – View duplicate packages

Bundle metrics   2 changes 1 regression

	Current #3055	Baseline #3053
Initial JS	5.84MiB(+0.06%)	5.84MiB
Initial CSS	305.21KiB	305.21KiB
Cache Invalidation	54.69%	0%
Chunks	51	51
Assets	172	172
Modules	1583	1583
Duplicate Modules	21	21
Duplicate Code	0.89%	0.89%
Packages	135	135
Duplicate Packages	2	2

Bundle size by type   6 changes 6 regressions

	Current #3055	Baseline #3053
JS	7.7MiB (+100%)	undefined
IMG	2.52MiB (+100%)	undefined
CSS	323.06KiB (+100%)	undefined
Fonts	93.55KiB (+100%)	undefined
Other	18.21KiB (+100%)	undefined
HTML	13.58KiB (+100%)	undefined

Bundle analysis report Branch improve-validation-mqtt-device Project dashboard

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