Fix autocomplete context geoBias having empty position

[golles]

Proposed change

Fix autocomplete context geoBias having an empty position
Update fixtures

{
  "context": { "inputQuery": "pizza", "geoBias": { "position": {} } },
  "results": [
    ...
  ]
}

Breaking change

Checklist:

• I have performed a self-review of my code
• I have added tests that prove my fix is effective or that my feature works

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 100.00%. Comparing base (7fb4377) to head (9800bb1).
Report is 2 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff            @@
##              main       #57   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           41        41           
  Lines         2253      2259    +6     
=========================================
+ Hits          2253      2259    +6     

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[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
100.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud