v0.45.1

v0.45.1

• Fixed: the [sysmda_md_actions] dropdown opened off to the right of the
  button instead of below it. The menu was anchored to the caret rather than to
  the split button as a whole, so its left edge started halfway across the
  control and the panel hung out over the text beside it. It is now aligned to
  the button's own edge and drops straight below, which is what the control
  looked like it should do all along.
• Fixed: the fallback placements now run only when they are needed, and they
  handle the awkward cases better. The menu switches to the opposite alignment
  when the button sits too close to the screen edge, flips above the button when
  there is no room below, and — where there is room on neither side — caps its
  height and scrolls instead of growing across the button it belongs to. On a
  right-to-left site both alignments mirror.
• Changed: the menu is sized to its own content instead of a fixed 250 px, with
  the same width as its floor, so a longer translated label is no longer squeezed
  into two lines while a narrow screen still keeps it inside the viewport.