fix(database,email,forms): handler returned types not matching declared types

[kon14]

Fixes certain handlers still returning totalCount despite their return signature suggesting they return count. All counts are now in truly consistently returned as count across all routes.

What kind of change does this PR introduce?

• [X] Bugfix
• [ ] Feature
• [ ] Code style update
• [ ] Refactor
• [ ] Build-related changes
• [ ] Other (please describe)

Does this PR introduce a breaking change?

• [ ] Yes
• [X] No

Branding this as a bugfix instead of a breaking change as our route doc already specified that return type.

The PR fulfills these requirements:

• [X] It's submitted to the main branch
• [ ] When resolving a specific issue, it's referenced in the PR's description (e.g. fix #xxx, where "xxx" is the issue number)