Add warning system for battery level

[callemand]

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Description of change

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (9466570) 98.17% compared to head (f3da5e1) 98.18%.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #1936   +/-   ##
=======================================
  Coverage   98.17%   98.18%           
=======================================
  Files         776      778    +2     
  Lines       12167    12198   +31     
=======================================
+ Hits        11945    11976   +31     
  Misses        222      222           

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[relativeci]

Job #2090: Bundle Size — 9.02MiB (+0.1%).

f3da5e1(current) vs 9466570 master#2089(baseline)

Warning

Bundle contains 3 duplicate packages – View duplicate packages

Bundle metrics   3 changes 1 regression

	Current Job #2090	Baseline Job #2089
Initial JS	4.87MiB(+0.18%)	4.86MiB
Initial CSS	302.35KiB	302.35KiB
Cache Invalidation	53.8%	0%
Chunks	51	51
Assets	157	157
Modules	1409(+0.57%)	1401
Duplicate Modules	20	20
Duplicate Code	0.83%	0.83%
Packages	124	124
Duplicate Packages	3	3

Bundle size by type   1 change 1 regression

	Current Job #2090	Baseline Job #2089
JS	6.53MiB (+0.14%)	6.52MiB
IMG	2.06MiB	2.06MiB
CSS	318.72KiB	318.72KiB
Fonts	93.55KiB	93.55KiB
Other	16.06KiB	16.06KiB
HTML	13.58KiB	13.58KiB

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View job #2090 report View callemand:warning_battery_level branch activity

[Pierre-Gilles]

Hey! Thanks for this PR :)

I'm able to enter absurd values in the field:

Could we make it only work between 0 and 100 ?

Otherwise it looks good!

[Pierre-Gilles]

Typo

"À 09h00, uniquement le samedi, un message sera envoyé à tous les admins dès que le niveau de la batterie parsera en dessous du pourcentage choisi"