Group the two visibility switches, and put the drawing tools back where they belong

"Zeichnung" and "Randnotizen" are two halves of one question — how much of your
own work do you want to see right now — and they sat at opposite ends of the
toolbar, each beside the tool that made them. They are now one pair in one shape
at the right-hand end. Each still appears only once there is something of its
kind to hide, so the pair can be lopsided, which is honest.

The drawing tools had drifted past the pin controls as those were added, so
switching to Zeichnen made them appear somewhere other than where the eye
already was. They follow the button that turns them on again.

A separator no longer carries a ×. It sat a few pixels from the label you click
to rename, putting the gesture that tidies the list next to the one that destroys
part of it — so removal is a right-click behind a confirmation that says the
notes are not affected, which is how everything else in that list is acted on.

218 unit tests, 237 browser checks across eleven suites. The toolbar checks
compare measured positions rather than presence, since the complaint was about
where things were, not whether they existed.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

readme.md

@@ -332,11 +332,11 @@ docker compose -f docker-compose.dev.yml up -d --build   # must be running
 | `search-attachments` | 12 | body-only matches, ranking, umlauts; images as blob URLs, not inline bytes |
 | `history` | 10 | a large deletion is snapshotted, restoring works, restoring is itself undoable |
 | `drawing` | 7 | strokes survive the poller, and match across four viewport widths |
-| `pdf` | 82 | import, page proportions, lazy loading, and reading with the network off |
+| `pdf` | 85 | import, page proportions, lazy loading, and reading with the network off |
 | `attachments-lifecycle` | 10 | a picture is kept while any version shows it, and freed once none does |
 | `conflict` | 10 | a late write wins but the state it buries survives as a version |
 | `export` | 21 | the downloaded bytes are real Markdown, ZIP and PNG, unpacked and read back |
-| `organise` | 35 | a hand-made order survives a search; separators hold their place; a note exported and imported comes back whole |
+| `organise` | 38 | a hand-made order survives a search; separators hold their place; a note exported and imported comes back whole |
 | `offline` | 12 | a cold page load with the network off still opens notes and searches them |
 
 Each suite creates a throwaway account through the admin API and deletes it
@@ -739,7 +739,10 @@ questions asked of every notebook at once, so there is nothing for an
 arrangement to belong to and nowhere to keep it.
 
 **Separators** are lines drawn between notes, optionally named, stored on the
-notebook beside the sort mode. They move by dragging like a note does — a
+notebook beside the sort mode. One is removed by right-clicking it and
+confirming — a × on the row would sit a few pixels from the label you click to
+rename, putting the gesture that tidies the list next to the one that destroys
+part of it. They move by dragging like a note does — a
 divider that cannot move with what it divides is worse than none — and their
 position is recorded as "how many notes come before me", so they stay put as the
 notes around them are renamed, edited or opened. They are shown only in the
@@ -808,9 +811,16 @@ the links reported to the server. Its target is a marker inside this note's own
 overlay, so no note has that id, and reporting it would fill the backlink table
 with rows that match nothing.
 
-**They can be hidden.** Reading the document as it was printed is a normal thing
-to want; the toolbar toggles the markers and the column together, and the page
-takes the width back while they are away.
+**They can be hidden**, and so can the drawings — by a pair of switches at the
+right-hand end of the toolbar. They are two halves of one question, *how much of
+my own work do I want to see right now*, and they used to sit at opposite ends of
+the bar, each beside the tool that made them. Each appears only once there is
+something of its kind to hide. Hiding the margin notes takes the markers and the
+column together, and the page takes the width back while they are away.
+
+The drawing tools sit directly after the button that turns them on. They had
+drifted to the far side of two other controls, so switching to Zeichnen made them
+appear somewhere other than where the eye already was.
 
 They come along when the document is exported with annotations: each becomes a
 numbered marker plus a small box with its text, placed on whichever side of the