tooltip and navbar cleanup

closes #86

templates/multiFileField.hamlet

@@ -16,5 +16,5 @@ $# new files
   <label for=#{fieldId}_zip>ZIPs automatisch entpacken
   <input type=checkbox id=#{fieldId}_zip name=#{fieldName} value=#{unpackZips}>
   <div class="js-tooltip">
-    <div class="tooltip__handle">?
+    <div class="tooltip__handle">
     <div class="tooltip__content">Entpackt hochgeladene Zip-Dateien (*.zip) automatisch und fügt den Inhalt dem Stamm-Verzeichnis der Abgabe hinzu.

templates/standalone/tooltip.lucius

@@ -19,6 +19,23 @@
   text-align: center;
   margin: 0 10px;
   cursor: default;
+  position: relative;
+
+  &::before {
+    content: '\f128';
+    position: absolute;
+    top: 0;
+    left: 0;
+    font-family: "Font Awesome 5 Free";
+    top: 50%;
+    left: 50%;
+    transform: translate(-50%, -50%);
+    font-size: 15px;
+  }
+
+  &:hover {
+    background-color: var(--color-light);
+  }
 }
 
 .tooltip__content {

templates/widgets/form.hamlet

@@ -10,5 +10,5 @@ $case formLayout
           ^{fvInput view}
           $maybe tooltip <- fvTooltip view
             <div .js-tooltip>
-              <div .tooltip__handle>?
+              <div .tooltip__handle>
               <div .tooltip__content>^{tooltip}

templates/widgets/navbar.lucius

@@ -41,7 +41,7 @@
   background: linear-gradient(to top, var(--color-dark) 0%,var(--color-darker) 100%); /* W3C, IE10+, FF16+, Chrome26+, Opera12+, Safari7+ */
   color: white;
   margin-right: 40px;
-  z-index: 10;
+  z-index: 20;
   box-shadow: 0 0 4px rgba(0, 0, 0, 0.2);
   overflow: auto;
   transition: all .2s cubic-bezier(0.03, 0.43, 0.58, 1);