TypeScript fixes

[JoshMock]

Several new APIs were not exporting their Request interfaces. Also found some files importing modules they weren't using or that didn't exist, and noticed a few paths missing from the tsconfig.

[JoshMock]

I haven't verified this, but I'm curious if some of these fixes will clear up some odd output I've seen from Python codegen this week.

[kderusso]

Thank you!

[github-actions]

Following you can find the validation results for the APIs you have changed.

API	Status	Request	Response
query_ruleset.delete	⚪	Missing test	Missing test
query_ruleset.get	⚪	Missing test	Missing test
query_ruleset.list	⚪	Missing test	Missing test
query_ruleset.put	⚪	Missing test	Missing test
search_application.delete_behavioral_analytics	⚪	Missing test	Missing test
search_application.delete	⚪	Missing test	Missing test
search_application.get_behavioral_analytics	⚪	Missing test	Missing test
search_application.get	⚪	Missing test	Missing test
search_application.list	⚪	Missing test	Missing test
search_application.put_behavioral_analytics	⚪	Missing test	Missing test
search_application.put	⚪	Missing test	Missing test
search_application.search	⚪	Missing test	Missing test
synonyms.delete_synonym_rule	⚪	Missing test	Missing test
synonyms.delete_synonym	⚪	Missing test	Missing test
synonyms.get_synonym_rule	⚪	Missing test	Missing test
synonyms.get_synonym	⚪	Missing test	Missing test
synonyms.get_synonyms_sets	⚪	Missing test	Missing test
synonyms.put_synonym_rule	⚪	Missing test	Missing test
synonyms.put_synonym	⚪	Missing test	Missing test

You can validate these APIs yourself by using the make validate target.