Vendor ChunkFive and highlight.js assets

- Add ChunkFive font (woff, woff2) for become manifesto
- Add highlight.js and GitHub Dark theme
- Update .gitignore to allow static/vendor/

.gitignore

@@ -10,8 +10,9 @@ venv/
 *.db
 test_vault/
 
-# Vendored dependencies
+# Vendored dependencies (root level, not static/vendor)
 vendor/
+!static/vendor/
 
 # IDE
 .idea/

static/vendor/chunkfive/chunkfive.css

@@ -0,0 +1,8 @@
+/*! ChunkFive - Font Squirrel */
+@font-face {
+    font-family: 'ChunkFive';
+    src: url('chunkfive-regular-webfont.woff2') format('woff2'),
+         url('chunkfive-regular-webfont.woff') format('woff');
+    font-weight: normal;
+    font-style: normal;
+}

static/vendor/highlight-github-dark.min.css

@@ -0,0 +1,10 @@
+pre code.hljs{display:block;overflow-x:auto;padding:1em}code.hljs{padding:3px 5px}/*!
+  Theme: GitHub Dark
+  Description: Dark theme as seen on github.com
+  Author: github.com
+  Maintainer: @Hirse
+  Updated: 2021-05-15
+
+  Outdated base version: https://github.com/primer/github-syntax-dark
+  Current colors taken from GitHub's CSS
+*/.hljs{color:#c9d1d9;background:#0d1117}.hljs-doctag,.hljs-keyword,.hljs-meta .hljs-keyword,.hljs-template-tag,.hljs-template-variable,.hljs-type,.hljs-variable.language_{color:#ff7b72}.hljs-title,.hljs-title.class_,.hljs-title.class_.inherited__,.hljs-title.function_{color:#d2a8ff}.hljs-attr,.hljs-attribute,.hljs-literal,.hljs-meta,.hljs-number,.hljs-operator,.hljs-selector-attr,.hljs-selector-class,.hljs-selector-id,.hljs-variable{color:#79c0ff}.hljs-meta .hljs-string,.hljs-regexp,.hljs-string{color:#a5d6ff}.hljs-built_in,.hljs-symbol{color:#ffa657}.hljs-code,.hljs-comment,.hljs-formula{color:#8b949e}.hljs-name,.hljs-quote,.hljs-selector-pseudo,.hljs-selector-tag{color:#7ee787}.hljs-subst{color:#c9d1d9}.hljs-section{color:#1f6feb;font-weight:700}.hljs-bullet{color:#f2cc60}.hljs-emphasis{color:#c9d1d9;font-style:italic}.hljs-strong{color:#c9d1d9;font-weight:700}.hljs-addition{color:#aff5b4;background-color:#033a16}.hljs-deletion{color:#ffdcd7;background-color:#67060c}