Modern browsers have a "dark mode" preference, which enables alternate
styles on web sites that support this.

This patch adds a dark color scheme, that is automatically activated
via a CSS @media query.

Older browsers that do not support color schemes will simply show the
light scheme, but possibly without syntax highlighting.

Note that filters that use color (such as source highlighters) and
logotypes may need to be updated to work with a black background!
See the updated files in the filters/ directory.

Signed-off-by: Samuel Lidén Borell <samuel@kodafritt.se>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>

Update to git version v2.46.0, this requires changes for these
upstream commits:

* e7da9385708accf518a80a1e17969020fb361048
  global: introduce `USE_THE_REPOSITORY_VARIABLE` macro

* 9da95bda74cf10e1475384a71fd20914c3b99784
  hash: require hash algorithm in `oidread()` and `oidclr()`

* 30aaff437fddd889ba429b50b96ea4c151c502c5
  refs: pass repo when peeling objects

* c8f815c2083c4b340d4148a15d45c55f2fcc7d3f
  refs: remove functions without ref store

Signed-off-by: Christian Hesse <mail@eworm.de>

fix error that is given because of macro overlapping cgit_filter member:

../filter.c:388:10: error: no member named '__fprintf_chk' in
'struct cgit_filter'
  388 |         filter->fprintf(filter, f, prefix);
      |         ~~~~~~  ^
/usr/include/bits/stdio2.h:92:3: note: expanded from macro 'fprintf'
   92 |   __fprintf_chk (stream, __USE_FORTIFY_LEVEL - 1, __VA_ARGS__)
      |   ^
1 error generated.

Signed-off-by: Denis Pronin <dannftk@yandex.ru>
Signed-off-by: Christian Hesse <mail@eworm.de>

Signed-off-by: Christian Hesse <mail@eworm.de>

Update to git version v2.45.2, no additional changes required.

Signed-off-by: Christian Hesse <mail@eworm.de>

Update to git version v2.45.1, no additional changes required.

Signed-off-by: Christian Hesse <mail@eworm.de>

Update to git version v2.45.0, this requires changes for these
upstream commits:

* 9720d23e8caf4adee44b3a32803a9bb0480118bd
  date: make DATE_MODE thread-safe

Signed-off-by: Christian Hesse <mail@eworm.de>

Update to git version v2.44.0, no additional changes required.

Signed-off-by: Christian Hesse <mail@eworm.de>

Update to git version v2.43.2, no additional changes required.

(Git v2.43.1 fails to build, thus skipping.)

Signed-off-by: Christian Hesse <mail@eworm.de>

Update to git version v2.43.0, no additional changes required.

Signed-off-by: Christian Hesse <mail@eworm.de>