Task: Add a separate section for worklogs

Currently, we have a "Journal" link in the header, but it leads to the /timers page. However, the timers page itself is almost useless because it just lists when and what I did, and it is especially useless from an SEO perspective due to a lot of generated, boilerplate information.

Instead, it should lead to the /worklogs list page. Worklogs provide higher quality information because they typically describe what was actually done. We need to maintain them more carefully so that each page carries a lot of useful information. Then both Google and AI agents will index them better.

By the way, there is also an "All worklogs" block on the main page, and we need to add a "View all worklogs" link.