Remove "Browse" Page; Replace with example page

1. Remove the Browse Page, this won't be so useful once we have the separate listing page for "Biomolecular Condensates"
2. New tabs for Example pages - one for condensate and one for protein (Willis or Agnes to say which specific example)

added Doing front-end labels

moved from dd-code-api#16 (moved)

closed

@moon Did you put the Example pages somewhere? I couldn't find on the Dev version

I added some example condensate and protein. Let me know if you decide which one should be in the examples.

mentioned in issue #16 (closed)

mentioned in commit b5354992