Faster paste creating, saving and viewing

This update improves performance across paste creation, saving, viewing, and collections.

Faster paste creation

Creating pastes now completes faster, with less waiting during repeat visits and when adding multiple images.

Faster paste saving

Simple paste edits are now around 60% faster in our tests. We reduced unnecessary database work and improved how cached paste data is refreshed.

Faster paste loading

Loading pastes is around 28% faster in our measured tests.

Comments and suggestions now make better use of cached results, helping pages load more smoothly and reliably.

Faster collections

Collection lists, pages, and management actions now load faster. Saving, moving, and removing pastes from collections also completes with less waiting.