All campaigns page improvements

[swolf86]

Which area(s) of Podkrepi.bg are affected? (leave empty if unsure)

No response

Describe the feature you'd like to request

✅ Show 20 campaigns on first load (Done)
✅ Pagination of all other campaigns (20 campaigns per page ) (Done)
✅ Add scroll to top button. (Done)
✅ Filter option all to be active on arriving on the page (Done)

• add one more filter for all completed campaigns in 1 categories "closed'

Describe the solution you'd like

Design to be added

Describe alternatives you've considered

No response

[ani-kalpachka]

Scroll to top button is added. The changes can be seen here: #1890

[ani-kalpachka]

Showed 20 campaigns per page and added pagination: #1897