gpuicn v0.9.2

gpuicn v0.9.2

Two requests from Matty: a new Embed component for cards under a chat
message, and dialogs taller than the window now scroll under the pointer.
Every change is additive; the runtime pins are unchanged: GPUI Kit 0.9.0 on
gpui-pre 0.3.11 and gpui-icons 0.6.0.

Added

• Embed (gpuicn add embed): two cards for what a chat server attaches to
  a post (#108).
  • LinkPreview is an Open Graph preview: a muted site name, a title that
    wraps to two lines and opens the link, a description clamped to three
    lines, and an image. The image is large below the text, or a thumbnail
    on the right when it is narrower than 150px or roughly square. The caller
    passes its pixel size, so the card holds the box before the bytes load.
    on_toggle adds a "Collapse preview" / "Expand preview" chevron that
    hides the image, and on_remove adds a "Remove preview" button.
  • MessageEmbed is the integration attachment: a colored bar (any color,
    a hex string, or good, warning and danger), pretext, an author line
    with an icon, a title, a body slot for your Markdown, a fields grid with
    short fields two to a row, an image, a thumbnail and a footer with an
    icon and a time.
  • Both follow MessageDensity, read every color from the theme, and are
    groups named by their title. Linked titles take focus and open on Enter.

Fixed

• Dialog: a dialog taller than the window scrolls with the wheel over its
  surface. dialog_popup used occlude(), which hid the wheel from the
  dialog's scrolling viewport, so the content stayed clipped. It now uses
  block_mouse_except_scroll(): clicks and hover still stop at the surface,
  and the backdrop still keeps the wheel from the page behind. If you built
  your own surface for dialog with occlude(), switch it the same way
  (#109).

Upgrading

cargo install gpuicn-cli --version 0.9.2 --locked
gpuicn update --to 0.9.2

Crate users: cargo update -p gpuicn.