message: metainfo.xml: Prepare for release (and fix old release date.
diff: -->
  - <release version="0.3.8" urgency="medium" type="development">
  + <release version="0.3.8" urgency="medium" date="2022-10-30">
  <description>
  <ul>
  <li>Fixes restoring the cursor visibility after leaving alternate screen when application wasn't restoring mode switches in reverse order.</li>
  </description>
  </release>
  - <release version="0.3.7" urgency="medium" type="development">
  + <release version="0.3.7" urgency="medium" date="2022-11-01">
  <description>
  <ul>
  <li>Fixes display of non-insert mode (vi-like) cursor on monochrome lines.</li>
  