Orbit Pi 0.2.1

Changed

• Dropdown menus across the app now match the branch selector's popover
  style: one surface treatment, roomier rows with the same hover, and the
  current choice marked with the active fill and a check. This covers the Git
  page's Sync and "…" menus, changed-file and merge/rebase menus, the Review
  source menu, the Usage filter and row menus, the composer's add/mode
  popups, and the sidebar session menu; the branch, label, template, and
  Settings pickers now share the same row treatment. Right-click context
  menus stay compact.

Fixed

• The Issue page's Label dropdown now closes when its trigger is clicked a
  second time. The popup dismissed on mouse-down and the trigger's mouse-up
  re-opened it on the same click; the trigger now honors the same gesture
  guard every other dropdown uses.

• New Task now starts a fresh session when pi has exited instead of doing
  nothing. With no turn in flight the button sent new_session to the live
  process, so while the reconnect banner was up the command went into the dead
  process's stdin and was never answered; it now spawns a replacement whenever
  the process is not alive, dropping the corpse and its stale exit banner. The
  sidebar's workspace + gets the same fix.

What's Changed

• fix(session): respawn pi when New Task runs with a dead process by @imrj05 in #40
• Unify dropdown menus on the branch selector's picker style by @imrj05 in #41

Full Changelog: v0.2.0...v0.2.1