Improves Gem Catalog Search (searches, Name, DisplayName, Creator, Summary, and Features), Gem Display Names now used in Gem Catalog

Signed-off-by: nggieber <nggieber@amazon.com>

Code/Tools/ProjectManager/Source/GemCatalog/GemModel.cpp

@@ -30,6 +30,7 @@ namespace O3DE::ProjectManager
         item->setFlags(Qt::ItemIsEnabled | Qt::ItemIsSelectable);
 
         item->setData(gemInfo.m_name, RoleName);
+        item->setData(gemInfo.m_displayName, RoleDisplayName);
         item->setData(gemInfo.m_creator, RoleCreator);
         item->setData(gemInfo.m_gemOrigin, RoleGemOrigin);
         item->setData(aznumeric_cast<int>(gemInfo.m_platforms), RolePlatforms);
@@ -64,6 +65,20 @@ namespace O3DE::ProjectManager
         return modelIndex.data(RoleName).toString();
     }
 
+    QString GemModel::GetDisplayName(const QModelIndex& modelIndex)
+    {
+        QString displayName = modelIndex.data(RoleDisplayName).toString();
+
+        if (displayName.isEmpty())
+        {
+            return GetName(modelIndex);
+        }
+        else
+        {
+            return displayName;
+        }
+    }
+
     QString GemModel::GetCreator(const QModelIndex& modelIndex)
     {
         return modelIndex.data(RoleCreator).toString();
@@ -117,7 +132,7 @@ namespace O3DE::ProjectManager
             QModelIndex modelIndex = FindIndexByNameString(dependingGemString);
             if (modelIndex.isValid())
             {
-                dependingGemString = GetName(modelIndex);
+                dependingGemString = GetDisplayName(modelIndex);
             }
         }
     }