Add pagination only if max_number_of_topics > number_of_topics

[nullchristo]

Adds a new theme component setting called max_number_of_topics, defaulting to 0.

Unless this is set to a number greater than the number_of_topics setting, behavior should be unchanged.

If it's set to a higher number AND there are enough featured topics to have more than one page, page arrows will appear allowing the user to cycle through pages of featured topics with each page having number_of_topics topics displayed. The left/right arrow buttons should only display if there are additional pages in that direction.

Tries to play nicely with the show_all_always setting and handles small screen sizes in the same way (lowering the number of displayed topics as the screen shrinks, but still allowing all topics included by max_number_of_topics to be paged through).

Kooha-2025-09-23-16-06-20.webm

Requested in this meta topic: https://meta.discourse.org/t/331599

[pento]

A quick note while looking at this: does pnpm-lock.yml actually need updating? It appears to only be formatting changes to the file.

[nullchristo]

A quick note while looking at this: does pnpm-lock.yml actually need updating? It appears to only be formatting changes to the file.

Yeah, not necessary just caught by the linter I think. Seems harmless to include but I can remove it.

[pmusaraj]

Looks good!