Relabel node/edge_ids when node_id start at 0 (crashes motile_tracker)

[TeunHuijben]

Closes #248

motile_tracker has the problem that the segmentation looks weird when the graph/geff has node_ids starting at 0

This PR add a funtracks function that, upon graph building, relabels the node_ids (and accompanying edge_ids) to start at 1 (all +1)

[codecov]

Codecov Report

❌ Patch coverage is 95.45455% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 93.83%. Comparing base (afb6c4d) to head (5901596).
⚠️ Report is 5 commits behind head on main.

Files with missing lines	Patch %	Lines
src/funtracks/import_export/_tracks_builder.py	95.45%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #272      +/-   ##
==========================================
- Coverage   93.92%   93.83%   -0.09%     
==========================================
  Files          59       59              
  Lines        3323     3342      +19     
==========================================
+ Hits         3121     3136      +15     
- Misses        202      206       +4     

☔ View full report in Codecov by Harness.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

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