Manual support tags not being translated

[strk]

The text of "compliant" tags found in postgis.xml is not being translated. There's no trace of the text in the po/templates/postgis.xml.pot so no opportunity for translating it.

See also #5055

[strk]

I guess by using tag_*.xml files we would solve this

[strk]

I've given the external .xml idea a try. In order to work it requires wrapping the entity into a <para> which in turns forces a new paragraph breaking the SQL-1.1 information integration in some functions, for example the SQLMM-3 7.2.4 specification you find in ​https://postgis.net/docs/manual-dev/ST_NumPoints.html

[strk]

The reason for things breaking is this kind of usage in xml files:

<para>&sqlmm_compliant; SQL-MM: Topo-Geo and Topo-Net 3: Routine Details:  X.3.12</para>

[strk]

I've found that using a <remark> tag makes xml2pot capable of extracting the string to be translated. It makes the html slightly different (adds an <em> tag) but is acceptable to me. See ​https://git.osgeo.org/gitea/postgis/postgis/pulls/128

Regina: tests with that branch are welcome

[Sandro Santilli <strk@…>]

In d0cf9bc/git:

Make support/compliancy tags translatable

Closes #5412

Translate tag files in italian