docs site: added project icons to project dropdown

src/FlUnit.Documentation/Shared/NavMenu.razor

@@ -2,12 +2,12 @@
   <div class="container-fluid ps-2 dropdown">
     <a class="navbar-brand dropdown-toggle" href="" id="dropdown01" data-bs-toggle="dropdown" aria-expanded="false"><img src="img/FlUnit-32.png" alt="FlUnit icon" /> FlUnit</a>
     <ul class="dropdown-menu" aria-labelledby="dropdown01">
-        <li><a class="dropdown-item" href="https://sdcondon.net/SCClassicalPlanning">SCClassicalPlanning</a></li>
-        <li><a class="dropdown-item" href="https://sdcondon.net/SCFirstOrderLogic">SCFirstOrderLogic</a></li>
-        <li><a class="dropdown-item" href="https://sdcondon.net/SCGraphTheory">SCGraphTheory</a></li>
-        <li><a class="dropdown-item" href="https://sdcondon.net/SCSetTrie">SCSetTrie</a></li>
+        <li><a class="dropdown-item" href="https://sdcondon.net/SCClassicalPlanning"><img src="https://sdcondon.net/SCClassicalPlanning/img/SCClassicalPlanning-32.png" /> SCClassicalPlanning</a></li>
+        <li><a class="dropdown-item" href="https://sdcondon.net/SCFirstOrderLogic"><img src="https://sdcondon.net/SCGraphTheory/img/SCGraphTheoryIcon-32.png" /> SCFirstOrderLogic</a></li>
+            <li><a class="dropdown-item" href="https://sdcondon.net/SCGraphTheory"><img src="https://sdcondon.net/SCFirstOrderLogic/img/SCFirstOrderLogic-32.png" /> SCGraphTheory</a></li>
+        <li><a class="dropdown-item" href="https://sdcondon.net/SCSetTrie"><img src="https://sdcondon.net/SCSetTrie/img/SCSetTrie-32.png" /> SCSetTrie</a></li>
         <li><hr class="dropdown-divider"></li>
-        <li><a class="dropdown-item" href="https://sdcondon.net/">Personal Homepage</a></li>
+        <li><a class="dropdown-item" href="https://sdcondon.net/"><img src="https://sdcondon.net/favicon.ico" /> Personal Homepage</a></li>
     </ul>
     <button title="Navigation menu" class="navbar-toggler" @onclick="ToggleNavMenu">
       <span class="navbar-toggler-icon"></span>