replace deprecated icon for marking elements as required, fixes #1159

Author: rastislavpapp

src/main/java/com/github/cameltooling/idea/completion/endpoint/CamelSmartCompletionEndpointOptions.java

@@ -222,7 +222,7 @@ public static List<LookupElement> addSmartCompletionSuggestionsQueryParameters(f
                     }
                     // add icons for various options
                     if (option.isRequired()) {
-                        builder = builder.withIcon(AllIcons.Toolwindows.ToolWindowFavorites);
+                        builder = builder.withIcon(AllIcons.Nodes.Favorite);
                     } else if (option.isSecret()) {
                         builder = builder.withIcon(AllIcons.Nodes.SecurityRole);
                     } else if (option.isMultiValue()) {

src/main/java/com/github/cameltooling/idea/completion/header/CamelHeaderNameCompletion.java

@@ -182,7 +182,7 @@ private LookupElementBuilder withIcon(final PsiElement element,
                                           final ComponentModel.EndpointHeaderModel header,
                                           final LookupElementBuilder builder) {
         if (header.isRequired()) {
-            return builder.withIcon(AllIcons.Toolwindows.ToolWindowFavorites);
+            return builder.withIcon(AllIcons.Nodes.Favorite);
         } else if (header.isSecret()) {
             return builder.withIcon(AllIcons.Nodes.SecurityRole);
         } else if (header.isMultiValue()) {

src/main/java/com/github/cameltooling/idea/completion/property/CamelPropertyKeyCompletion.java

@@ -523,7 +523,7 @@ private static CamelCatalog getCamelCatalog(Project project) {
      */
     private static LookupElementBuilder withIcon(final BaseOptionModel option, final LookupElementBuilder builder) {
         if (option.isRequired()) {
-            return builder.withIcon(AllIcons.Toolwindows.ToolWindowFavorites);
+            return builder.withIcon(AllIcons.Nodes.Favorite);
         } else if (option.isSecret()) {
             return builder.withIcon(AllIcons.Nodes.SecurityRole);
         } else if (option.isMultiValue()) {