diagram v1.1.0

Released 2024-09-17.

• Provide better errors if TikZ fails to render.

• Use pandoc's own warn- and logging-system when possible.

• Use SVG only as a fallback option when targeting office formats.

• Transfer attributes from the code block to the image, unless the
  attribute has a special meaning. The ID is still transferred to
  the generated figure element.

• Add version field to the filter.

• Improved docs.