Use networkx based heuristics to improve the results

[kantord]

Currently the search results are mostly being sorted based on their semantic relevance, and partly on relevance heuristics based on patterns in Git history.

To improve the result sorting, it could be interesting to also experiment with analyzing the structure of the codebase with regards to which files reference each other and such. Based on this, centrality scores could be calculated, or even a score similar to pagerank could be used.

https://networkx.org/