refactor: add proper brand icons

svg/brand/codeigniter.svg

@@ -1 +1,4 @@
-<svg viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path d="M8.49 24a4.59 4.59 0 01-2.723-3.824 5.4 5.4 0 012.45-4.246c-.238.58-.18 1.24.15 1.77a1.625 1.625 0 001.655.646 1.697 1.697 0 00.66-2.91A3.76 3.76 0 019.332 12a3.523 3.523 0 011.096-1.785c-.405 1.08.737 2.146 1.504 2.67 1.36.816 2.67 1.713 3.924 2.686a5.285 5.285 0 012 4.5 4.986 4.986 0 01-3.385 3.93c3.55-.79 7.21-3.61 7.28-7.61a8.288 8.288 0 00-4.9-7.38h-.13c.065.157.096.326.09.496.01-.11.01-.22 0-.33.016.13.016.26 0 .39a1.699 1.699 0 01-2.976.658c-1.17-1.5 0-3.207.196-4.857a6.171 6.171 0 00-2.554-5.36c.856 1.427-.284 3.3-1.113 4.366-.83 1.066-2.03 1.86-3.008 2.79a24.503 24.503 0 00-2.887 3.21 9.778 9.778 0 00-2 8.205 7.806 7.806 0 006.015 5.43H8.5z"/></svg>
+<svg version="1.1" xmlns="http://www.w3.org/2000/svg" width="32" height="32" viewBox="0 0 32 32">
+<title>codeigniter</title>
+<path d="M11.317 32c-2.052-0.907-3.448-2.86-3.629-5.099 0.119-2.303 1.339-4.407 3.271-5.661-0.319 0.776-0.245 1.656 0.197 2.359 0.5 0.704 1.365 1.037 2.208 0.865 1.204-0.339 1.907-1.589 1.568-2.792-0.12-0.421-0.359-0.803-0.687-1.088-1.365-1.111-2.048-2.844-1.803-4.584 0.235-0.921 0.745-1.749 1.464-2.38-0.543 1.443 0.979 2.859 2.005 3.563 1.812 1.083 3.557 2.281 5.228 3.577 1.829 1.443 2.824 3.693 2.667 6-0.411 2.453-2.145 4.48-4.509 5.24 4.729-1.052 9.609-4.812 9.703-10.145-0.093-4.267-2.64-8.095-6.531-9.839h-0.172c0.083 0.208 0.124 0.432 0.119 0.661 0.011-0.147 0.011-0.297 0-0.443 0.021 0.177 0.021 0.349 0 0.52-0.296 1.215-1.52 1.959-2.739 1.667-0.484-0.119-0.917-0.395-1.229-0.785-1.563-2 0-4.276 0.26-6.48 0.161-2.812-1.124-5.5-3.405-7.145 1.14 1.901-0.381 4.401-1.485 5.823s-2.703 2.479-4.011 3.719c-1.405 1.308-2.692 2.745-3.848 4.281-2.5 3.052-3.48 7.079-2.667 10.937 1.115 3.719 4.208 6.516 8.020 7.24h0.021z"></path>
+</svg>