For example "doc/doxygen_sqlite3.db" is created on Windows/MSYS2.

The location of the file changed since we are using MSYS2.

Update of Slovak translation

Fix fuzzy entries in German translation

Update zh_CN translation

Fixes #1102.

updated it.po for upcoming 1.28

Properly expose TMTag which already contains documented members.

Don't use wildcards that can catch generated files.

While at it, also avoid Doxygen picking up those generated files.

This allows GI-based plugins to traverse/inspect the array and consequently
Geany loaded tags.

tm_tag.h and tm_parser.h contain documented symbols so doxygen shall process
them.

It's members are already documented so it's kind of half-exported anyway.
Since geanygendoc already uses the structure (and I plan on writing a plugin
that requires it too) just make it official.

Broken in #966.

Improve README