docs/Website: Niveus at upstream f340d56; fonts are binary

The vendored copy of Niveus, the site's design system, brought up to
the current upstream (github.com/Nexoniarz/Niveus, 2026-10-18). The
tree under docs/Website/niveus is upstream's byte for byte.

.gitattributes says `* text eol=lf` and listed the binary types it
knew, and woff2 was not one of them: Niveus's InstrumentSans-Italic
had a CR LF pair in its compressed data, and committing it turned that
into LF and the font into garbage. woff, woff2, otf, ico, gif, webp,
pdf and wasm are binary now.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01S1giNvrHTrPMPw7V6x1kQ4

.gitattributes

@@ -16,3 +16,14 @@
 *.tgz     binary
 *.zip     binary
 *.wad     binary
+# Fonts and the rest of what the website ships. `* text` above applies to
+# anything not listed, and a compressed font with a 0x0D 0x0A in it had that
+# pair "fixed" to 0x0A on commit -- a woff2 that no longer decoded.
+*.woff    binary
+*.woff2   binary
+*.otf     binary
+*.ico     binary
+*.gif     binary
+*.webp    binary
+*.pdf     binary
+*.wasm    binary