board: one model — first list inbox, last list done

Space sends a card to the done list or back to the inbox instead of
ticking it in place. Enter on a card with no document starts one named
after it, and q comes back to the board on the same card. :card captures
into the inbox without leaving the current view (c anywhere), :due takes
fri, tm, +3d and the like, :name! renames a list, done cards older than a
week fold away behind z, and the board spells out its keys. The phone dock
gains send, done, due and notes doors.

web/src/App.svelte

@@ -237,12 +237,19 @@
         void workspace.guard(() => workspace.openCard())
         return true
       case 'o':
+      case 'c':
         cmdline = ':card '
         return true
       case 'R':
-        cmdline = ':name '
+        // On an empty list there is no card to rename, so it is the list.
+        cmdline = workspace.card ? ':name ' : ':name! '
+        return true
+      case 'D':
+        cmdline = ':due '
+        return true
+      case 'z':
+        workspace.showOldDone = !workspace.showOldDone
         return true
-      case 't':
       case ' ':
         void workspace.guard(() => workspace.toggleDone())
         return true
@@ -432,6 +439,11 @@
         event.preventDefault()
         void runCommand('new')
         break
+      case 'c':
+        // Capture: a thought goes on this space's inbox without leaving here.
+        event.preventDefault()
+        cmdline = ':card '
+        break
       case 'O':
         // The name has to come from somewhere, and the command line is where
         // names are typed — this only saves typing `:mkdir `.