ida: fix section name as dynamic library name provided by IDA

Continuing the PR changes here: https://github.com/mandiant/capa/pull/1418#discussion_r1152956906_

we should figure out how to comprehensively identify when IDA provides this dynamic library name and strip it out, rather than hardcoding section names into the capa source code.

Start with the discussion linked from PR #1418 and trace the related capa source changes for IDA section names. Determine how to identify names supplied as dynamic library names without hardcoding them, then verify that those names are stripped correctly across the relevant IDA cases.

Written by the indexing model from the issue text.