dotbot/controller: implement dotbot filtering using a query model

[aabadie]

This PR adds a proper way to fetch a filtered list of available dotbots.

[codecov]

Codecov Report

❌ Patch coverage is 95.37037% with 5 lines in your changes missing coverage. Please review.
✅ Project coverage is 80.75%. Comparing base (adb0df9) to head (5728fcd).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
dotbot/joystick.py	33.33%	2 Missing ⚠️
dotbot/keyboard.py	33.33%	2 Missing ⚠️
dotbot/examples/charging_station.py	83.33%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #204      +/-   ##
==========================================
+ Coverage   79.85%   80.75%   +0.90%     
==========================================
  Files          26       26              
  Lines        2666     2718      +52     
==========================================
+ Hits         2129     2195      +66     
+ Misses        537      523      -14     

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