message: metainfo.xml: mini-typo fixes
diff: <description>
  <ul>
  <li>Fixes a problem with oversized glyphs being wrongly cut off (#821).</li>
  - <li>Fixes vertical cursor movement for sixel graphics with only newlines (#822)</li>
  - <li>Fixes sixel rendering for images with aspect ratios other than 1:1</li>
  - <li>Removes `images.sixel_cursor_conformance` config option</li>
  + <li>Fixes vertical cursor movement for sixel graphics with only newlines (#822).</li>
  + <li>Fixes sixel rendering for images with aspect ratios other than 1:1.</li>
  + <li>Removes `images.sixel_cursor_conformance` config option.</li>
  </ul>
  </description>
  </release>
  