feat: Go to scopes are grouped like the Sources pane, an account at a time

The scope list follows the Sources pane: All, then each account (or
Databricks, or Repos) with its sources under it, in place of All Azure,
All Databricks and All repos. An account scope searches and loads only
that account. ctrl+s on a group header narrows to its group.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

docs/keys.md

@@ -84,15 +84,16 @@ under every account. Both are kept in the [state file](config.md#state).
 starred) and `R` on Recent (what you used last). `enter` goes to the
 selected item.
 
-Search has the scope on the left (All; all of Azure, Databricks or repos;
-or one source; with `○ ◐ ●` for how much of it is loaded) and what's in
-it on the right. All repos searches every repo without asking Azure or
-Databricks for anything. It opens on All; `ctrl+s` again narrows it to
-the source you're in, and once more goes back to All. Typing a search
-loads what it covers: everything on All, else the source picked;
-results appear as lists arrive. That's once each time Go to opens, and
-only what isn't loaded yet; `ctrl+a` loads again, lists that failed
-included.
+Search has the scope on the left and what's in it on the right. The
+scopes are All, then grouped like the Sources pane: each account (or
+Databricks, or Repos) with its sources under it, with `○ ◐ ●` for how
+much of each is loaded. Repos searches every repo without asking Azure
+or Databricks for anything. Go to opens on All; `ctrl+s` again narrows
+it to the source or group selected in the Sources pane, and once more
+goes back to All. Typing a search loads what it covers: everything on
+All, else the account or source picked; results appear as lists
+arrive. That's once each time Go to opens, and only what isn't loaded
+yet; `ctrl+a` loads again, lists that failed included.
 
 Like a pane, Go to is either browsing or typing a filter:
 
@@ -100,7 +101,7 @@ Like a pane, Go to is either browsing or typing a filter:
 |---|---|---|
 | `j`/`k` | `ctrl+j`/`ctrl+k` | move |
 | `g`/`G` | | top / bottom |
-| `ctrl+s` | `ctrl+s` | only the source you're in / All |
+| `ctrl+s` | `ctrl+s` | only the source or group you're in / All |
 | `h`/`l`, `tab` | `ctrl+h`/`ctrl+l`, `tab` | scope list / results |
 | `[` / `]` | | previous / next tab |
 | `f` | `ctrl+f` | star |