Move descriptions of avalanche problem kinds to a separate glossary page, or condense them somehow

They add a lot of extra words, which makes the forecast page longer, and perhaps more difficult to read, especially for experienced users who already understand the meaning of the technical terms.

We could move the description of these terms to a separate glossary page, or we could also have some kind of popup (not great on the phone), or collapsible section in order to hide the text by default.

Start by locating the forecast page and the descriptions of avalanche problem kinds. Compare the available approaches in the issue—glossary page, popup, or collapsible section—and confirm how the page currently renders this text. Done means the forecast is less verbose by default while users can still access the term descriptions.

Written by the indexing model from the issue text.