navigation: the list by name outside the diary, Ctrl-P goes to anything by its name, new things land beside what they belong to

The list is folders first and then by name in every space but the diary,
which stays a journal by day; a document's row elsewhere shows when it
was last edited. Ctrl-P is a jump by name across every space, served by
GET /api/jump: the last word is looked for in the name, the ones before
along the path. / is the one full-text search, and Tab on its line takes
it to every space and back. A card's notes are made in the folder being
browsed when that is in the card's space, and a missing [[link]]'s
document beside the one linking to it. o in a space with templates opens
the line as :new with them listed.

docs/wiki/API.md

@@ -41,6 +41,7 @@ sealed or not.
 | `POST` | `/api/nodes/{id}/import` | import a folder or zip (multipart) under this node |
 | `POST` | `/api/import` | import an export at the root: directories become spaces |
 | `GET` | `/api/resolve?path=` | the node behind a slug path, `work/notes/monday` |
+| `GET` | `/api/jump?q=` | `Ctrl-P`: the nodes in every space whose name holds the last word and whose path holds the ones before, best first, each with its `location` |
 | `GET` | `/api/nodes/{id}/revisions` | a document's earlier versions, the newest first |
 | `GET` | `/api/nodes/{id}/revisions/{rev}` | one earlier version, with its text |
 | `GET` | `/api/nodes/{id}/backlinks` | the documents that link to this one, with the line each does it on |