Breaking: Remove tsync from default featureset + other minor fixes

[Wulf]

• (This is based on and requires Add filter() fn, update pagination() fn #103)
• Fixes a few compilation issues with recent changes
• Removes tsync from default featureset (Change default for tsync #100)
• Add Default implementation for GenerationConfig (fix: allow optional GenerationConfig fields #92)

[hasezoey]

i think most of these fixer changes could be done without being based on another PR's code, it would also help to review this PR while that required PR is not yet merged

PS: converting to WIP because of requirement PR

[hasezoey]

when you rebase this PR, do you want to use #112's fixes instead of the ones done here?

[Wulf]

yeah, going to close this. Let's drop in #112 on main instead of this.