feat: add shortcut for double icons to icon component

Author: Simon Sendler

src/main/webapp/WEB-INF/taglibs/util.taglib.xml

@@ -26,6 +26,12 @@
             <required>false</required>
             <type>java.lang.String</type>
         </attribute>
+        <attribute>
+            <description>Whether the icon should be displayed as a double icon</description>
+            <name>double</name>
+            <required>false</required>
+            <type>java.lang.Boolean</type>
+        </attribute>
     </tag>
     <tag>
         <tag-name>icon-text</tag-name>

src/main/webapp/WEB-INF/taglibs/util/icon.xhtml

@@ -5,13 +5,31 @@
 	xmlns:xlink="http://www.w3.org/1999/xlink"
 >
     <c:set var="filled" value="#{filled == 'true' ? 'filled' : 'outline'}" />
-    <span
-        class="icon-wrapper#{styleClass != null ? ' ' : ''}#{styleClass}"
-        aria-hidden="true"
-        title="#{title}"
-        data-toggle="#{title != null ? 'tooltip' : ''}">
-        <svg>
-            <use href="#{HelperForm.applicationWebsiteUrl}resources/icons/#{filled}/#{icon}.svg#icon" />
-        </svg>
-    </span>
+    <c:choose>
+        <c:when test="#{double == true}">
+            <span
+                class="icon-wrapper#{styleClass != null ? ' ' : ''}#{styleClass}"
+                aria-hidden="true"
+                title="#{title}"
+                data-toggle="#{title != null ? 'tooltip' : ''}">
+                <svg>
+                    <use href="#{HelperForm.applicationWebsiteUrl}resources/icons/#{filled}/#{icon}.svg#icon" />
+                </svg>
+                <svg style="margin-inline-start: -5px;">
+                    <use href="#{HelperForm.applicationWebsiteUrl}resources/icons/#{filled}/#{icon}.svg#icon" />
+                </svg>
+            </span>
+        </c:when>
+        <c:otherwise>
+            <span
+                class="icon-wrapper#{styleClass != null ? ' ' : ''}#{styleClass}"
+                aria-hidden="true"
+                title="#{title}"
+                data-toggle="#{title != null ? 'tooltip' : ''}">
+                <svg>
+                    <use href="#{HelperForm.applicationWebsiteUrl}resources/icons/#{filled}/#{icon}.svg#icon" />
+                </svg>
+            </span>
+        </c:otherwise>
+    </c:choose>
 </ui:component>