mdcat-2.16.0

Added

• New --full-width flag (and defaults.full_width in ~/.config/mdcat/config.toml) to use the
  full terminal width instead of capping output at 80 columns, without having to pass
  --columns $(tput cols) (see #42).

Fixed

• Clarify in the docs that Renderer::text_from_str/text_from_read (and the free
  text_from_str function) never render actual images, only alt text, because a Ratatui Text is
  plain styled spans that cannot carry image data; RenderOptions::images only affects
  MdcatWidget/MdcatWidgetState, which draw decoded images as overlays on top of the text. This
  was a common source of confusion for callers using Renderer directly without the widget (see
  #36).
• Fix a panic when a table cell contains a footnote reference (e.g. 2[^1]). Table cells handle
  inline events directly instead of going through the generic Inline state that footnote
  references were only wired up for, so FootnoteReference inside a TableBlock fell through to
  the "impossible event" panic (see #43).

Changed

• Lower the "Terminal does not support images, rendering image as link" log message from INFO
  to DEBUG. This message fires on every image when rendering into Ratatui Text, because that
  code path deliberately disables inline image protocols and renders images as overlays instead;
  at INFO it drowned out other diagnostics for ratatui-based consumers (see #37).