Machine registry improvements

[SchrodingersGat]

Various improvements for the machine registry, looking into recent issues. Addresses a number of small issues with the machine registry, in preparation for upcoming release.

Related Issues

• [BUG] Machine Printing Plugin does not show/open options for selecting Machine (especially in App not functioning) #9327
• Cannot re-register driver 'brother' (Inventree 0.18) inventree-brother-plugin#59
• Error in the Machine configuration inventree-brother-plugin#56

Breaking Changes

... todo ...

Tasks

• Add enhanced unit testing for machine registry
• Add more "dummy" machine drivers / devices for testing
• Playwright tests (e.g. ensure that settings get loaded)
• Prevent discovery of machines / drivers provided by "inactive" plugin
• Documentation for new plugin mixin and builtin plugins

[netlify]

✅ Deploy Preview for inventree-web-pui-preview canceled.

Name	Link
🔨 Latest commit	27513c6
🔍 Latest deploy log	https://app.netlify.com/projects/inventree-web-pui-preview/deploys/689c7697b576a200087a0a68

[codecov]

Codecov Report

❌ Patch coverage is 76.77419% with 36 lines in your changes missing coverage. Please review.
✅ Project coverage is 86.63%. Comparing base (33a275b) to head (27513c6).

Additional details and impacted files

@@            Coverage Diff             @@
##           master   #10150      +/-   ##
==========================================
- Coverage   87.12%   86.63%   -0.50%     
==========================================
  Files        1258     1261       +3     
  Lines       55882    55998     +116     
  Branches     2080     2080              
==========================================
- Hits        48689    48512     -177     
- Misses       6682     6975     +293     
  Partials      511      511              

Flag	Coverage Δ
backend	88.20% <76.77%> (-0.62%)	⬇️
migrations	42.69% <54.83%> (+0.07%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Components	Coverage Δ
Backend Apps	90.74% <76.77%> (-0.67%)	⬇️
Backend General	92.89% <ø> (-0.76%)	⬇️
Frontend	70.08% <ø> (+0.02%)	⬆️

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.