[LYN-2522] Preparation work for the filter pane (#799)

* [LYN-2522] Preparation work for the filter pane

* Added arrow up/down icons.
* Extended the gem info with the type (Asset, Code, Tool).
* Extended the model with the type and a helper for converting gem uuids into display names.
* Extended the link widget to be clickable with a custom action, needed for the "Show all/less" for the filters.
* Converting the uuids we get from Python to AZ::Uuids and then back to strings to have them all in the same format.

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

@@ -58,13 +58,6 @@ namespace O3DE::ProjectManager
 
         hLayout->addWidget(m_gemListView);
         hLayout->addWidget(m_gemInspector);
-
-
-        // Select the first entry after everything got correctly sized
-        QTimer::singleShot(100, [=]{
-            QModelIndex firstModelIndex = m_gemListView->model()->index(0,0);
-            m_gemListView->selectionModel()->select(firstModelIndex, QItemSelectionModel::ClearAndSelect);
-            });
     }
 
     QVector<GemInfo> GemCatalogScreen::GenerateTestData()