Fix trailing AND in edge_search_filter_query_constructor Cypher query
Corrected the edge_search_filter_query_constructor function to prevent
trailing AND operators in generated Cypher queries, which caused
Neo.ClientError.Statement.SyntaxError. Changed condition from
`j != len(and_filter_query) - 1` to `j != len(and_filters) - 1` for
valid_at, invalid_at, created_at, and expired_at filter blocks. Also
fixed outer loop condition to use `len(filters.<field>)` instead of
`len(or_list)`. Ensures valid Cypher syntax for single DateFilter cases.
Co-authored-by: TheEpTic <326774+TheEpTic@users.noreply.github.com>