feat(website): add OS icons to build-from-source pages

Author: strager

website/public/contribute/build-from-source/index.ejs.html

@@ -35,10 +35,18 @@ <h3>For contributors</h3>
       </p>
 
       <ul>
-        <li><a href="linux/">Linux</a></li>
-        <li><a href="macos/">macOS</a></li>
-        <li><a href="windows/">Windows</a></li>
-        <li><a href="nix/">Nix</a></li>
+        <li>
+          <a href="linux/"><qljs-icon name="linux" size="19" /> Linux</a>
+        </li>
+        <li>
+          <a href="macos/"><qljs-icon name="macos" size="19" /> macOS</a>
+        </li>
+        <li>
+          <a href="windows/"><qljs-icon name="windows" size="19" /> Windows</a>
+        </li>
+        <li>
+          <a href="nix/"><qljs-icon name="nix" size="19" /> Nix</a>
+        </li>
       </ul>
 
       <section id="single-command-build">

website/public/contribute/build-from-source/linux/index.ejs.html

@@ -15,7 +15,7 @@
     <header><%- await include("../../../common-nav.ejs.html") %></header>
 
     <main>
-      <h2><%= meta.title %></h2>
+      <h2><qljs-icon name="linux" size="29" /> <%= meta.title %></h2>
 
       <p>
         On Linux, you can build quick-lint-js using one of the following build

website/public/contribute/build-from-source/macos/index.ejs.html

@@ -15,7 +15,7 @@
     <header><%- await include("../../../common-nav.ejs.html") %></header>
 
     <main>
-      <h2><%= meta.title %></h2>
+      <h2><qljs-icon name="macos" size="29" /> <%= meta.title %></h2>
 
       <p>
         On macOS, you can build quick-lint-js using one of the following build

website/public/contribute/build-from-source/nix/index.ejs.html

@@ -15,7 +15,7 @@
     <header><%- await include("../../../common-nav.ejs.html") %></header>
 
     <main>
-      <h2><%= meta.title %></h2>
+      <h2><qljs-icon name="nix" size="29" /> <%= meta.title %></h2>
 
       <p>
         Building quick-lint-js from source using Nix is for advanced users only.

website/public/contribute/build-from-source/windows/index.ejs.html

@@ -15,7 +15,7 @@
     <header><%- await include("../../../common-nav.ejs.html") %></header>
 
     <main>
-      <h2><%= meta.title %></h2>
+      <h2><qljs-icon name="windows" size="29" /> <%= meta.title %></h2>
 
       <p>
         On Windows, you can build quick-lint-js using one of the following build