Closes #10518.

This reverts commit 12bce32b.

We don't need this yet, until we have a solution to #10525.

Closes #10523.

Reader: When `w:tblLook` has `w:firstColumn` set (or an equivalent bit
mask), we set row heads = 1 in the AST.

Writer: set `w:firstColumn` in `w:tblLook` when there are row
heads. (Word only allows one, so this is triggered by any number
of row heads > 0.)

Closes #9495.

...when `styles` extension is enabled.  Closes #9603.

Also improve manual's coverage of custom styles.

... so it links to the latest major release rather than a specific major release (which there are two of every year)

If the icon has class fa-fw or fa-w16 or fa-w14, we add a width
attribute to prevent the icon from appearing full-width in PDF or
docx output.

Closes #10134.

- The reader now uses a Span with class "mark" rather than
  "highlighted", for consistency with the other pandoc readers
  and writers.
- The writer renders a Span with sole class "mark" as highlighted
  text.

"mark" class is used for highlighting, and Asciidoc treats
bare `#...#` with no attributes as highlighted text.

Closes #10511.

Pending a solution for #10509.

Closes #10505. Regression from 3.6 caused by #10404.

Typst writer improvements.

Following mandoc:

https://cvsweb.bsd.lv/mandoc/st.c?rev=1.19&content-type=text/x-cvsweb-markup

These are now converted to inches as in the LaTeX writer.

Closes #9945.

Closes #10385.
Closes #2337.
Closes #6424.

Fixes a regression in 3.6 that caused problems parsing
text with underscores.

Closes #10497.

Pod ("Plain old documentation") is a markup languaged used principally
to document Perl modules and programs. Since it was originally meant to
be translated pretty directly to man, the semantics are fairly simple.

This Pod reader was developed with reference to the canonical user and
implementer documentation of Pod: https://perldoc.perl.org/perlpod and
https://perldoc.perl.org/perlpodspec.

There are 1490 .pod, .pl, and .pm in the Perl 5.34 distribution found in
/System/Library/Perl on my mac. Of those, this reader dies with a parse
error on 7 of them. All of them seem to be cases where pod commands are
found within a non-colon-prefixed =begin/=end. perlpodspec says I may
treat this as an error.

[API change] adds readPod

Closes #8416.

Closes #10490.

Closes #10491.