Move unexported @types packages to devDependencies

[Gerrit0]

I went through the generated declaration files for the build and moved any imported types which were not referenced from dependencies to devDependencies.

@types/minimatch is still included in dependencies because it is used in ./dist/lib/utils/paths.d.ts, the other @types packages are used internally but their types are not reexported.

If you want to validate the changes you can search for from '[^.] with "Files to include" set to ./typestrong-typedoc/dist/**/*.d.ts (or equivalent for how you opened the project) in VSCode. It gives 43 results of re-exports from TypeScript, 2 re-exports from handlebars (which now has its own type declarations) and 1 from minimatch

Closes #1010
Closes #986

[aciccarello]

Looks great! Thanks for defining how to audit the built files for types. Only improvement I could see would be to have a script to automate the audit but that seems unnecessarily complex.