Do not light torch by default; provide property to do so.

[msporny]

This PR does the following things:

• Changes the default behavior of the torch to be unlit by default.
• Provides a to automatically light the torch when initialized.

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 0% with 4 lines in your changes missing coverage. Please review.

Project coverage is 0.87%. Comparing base (4239c40) to head (f94b46a).

Files with missing lines	Patch %	Lines
components/BarcodeScanner.vue	0.00%	4 Missing ⚠️

Additional details and impacted files

@@          Coverage Diff          @@
##            main     #11   +/-   ##
=====================================
  Coverage   0.87%   0.87%           
=====================================
  Files          3       3           
  Lines        114     114           
  Branches      18      18           
=====================================
  Hits           1       1           
  Misses       113     113           

Files with missing lines	Coverage Δ
components/BarcodeScanner.vue	1.06% <0.00%> (ø)

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