feat(editor): the simulation's properties in a sheet of their own, with a restart for everyone

Who started the simulation, "Pakete verwerfen" and the dropped packets move
from the toolbar into a properties sheet beside the surface. New in it: restart
the simulation, after asking. The room learns a restart message: stopped as by
stop, every capture, dropped frame and program window emptied, started anew
and named after who restarted; refused for readers and frozen projects, logged,
and waiting for asked blobs like a start.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

packages/editor/browser/fromF.spec.ts

@@ -49,6 +49,7 @@ test('the editor from F itself: two people, one simulation, the bundle packed',
   await expect(ben.page.locator('g.device')).toHaveCount(await mia.page.locator('g.device').count());
   await mia.page.locator('button[name="simulationMode"]').click();
   await expect(ben.page.locator('svg.filius-canvas')).toHaveAttribute('data-mode', 'simulation');
+  await ben.page.getByRole('button', { name: 'Eigenschaften' }).click();
   await expect(ben.page.locator('[data-note="startedBy"]')).toHaveText('Simulation gestartet von Mia');
   expect([...mia.encodings.values()]).toEqual(['br']);
 });