Description

updates many of the delete-model database functions to instead of preloading the model, delete the model returning the necessary details for cache invalidation and calling the invalidation hook manually
updates the list accounts endpoint to use our new style paging logic (needed for cache change below)
updates go-structr to v0.8.9 which handles needing to check for an empty slice of uncached keys
updates a number of the list entry related database functions to instead rely on more caches
consolidates some caches and removes some unused functions

Checklist

[x] I/we have read the GoToSocial contribution guidelines.
[x] I/we have discussed the proposed changes already, either in an issue on the repository, or in the Matrix chat.
[x] I/we have not leveraged AI to create the proposed changes.
[x] I/we have performed a self-review of added code.
[x] I/we have written code that is legible and maintainable by others.
[x] I/we have commented the added code, particularly in hard-to-understand areas.
[ ] I/we have made any necessary changes to documentation.
[ ] I/we have added tests that cover new code.
[ ] I/we have run tests and they pass locally with the changes.
[x] I/we have run go fmt ./... and golangci-lint run.