Fix missing user_tags exception and configure gems button

Code/Tools/ProjectManager/Resources/ProjectManager.qss

@@ -291,6 +291,30 @@ QTabBar::tab:pressed
     height:50px;
 }
 
+#projectSettingsTab::tab-bar > QPushButton {
+    background: qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1,
+                            stop: 0 #888888, stop: 1.0 #555555);
+    qproperty-flat: true;
+    margin-right:30px;
+    margin-bottom:12px;
+    margin-top:0px;
+    min-width:170px;
+    max-width:170px;
+    min-height:26px;
+    max-height:26px;
+    border-radius: 3px;
+    text-align:center;
+    font-size:13px;
+}
+#projectSettingsTab::tab-bar > QPushButton:hover {
+    background: qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1,
+                            stop: 0 #999999, stop: 1.0 #666666);
+}
+#projectSettingsTab::tab-bar > QPushButton:pressed {
+    background: qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1,
+                            stop: 0 #555555, stop: 1.0 #777777);
+}
+
 #projectSettingsTopFrame {
     background-color:#1E252F;
 }

Code/Tools/ProjectManager/Source/PythonBindings.cpp

@@ -682,9 +682,12 @@ namespace O3DE::ProjectManager
                 projectInfo.m_displayName = Py_To_String_Optional(projectData, "display_name", projectInfo.m_projectName);
                 projectInfo.m_origin = Py_To_String_Optional(projectData, "origin", projectInfo.m_origin);
                 projectInfo.m_summary = Py_To_String_Optional(projectData, "summary", projectInfo.m_summary);
-                for (auto tag : projectData["user_tags"])
+                if (projectData.contains("user_tags"))
                 {
-                    projectInfo.m_userTags.append(Py_To_String(tag));
+                    for (auto tag : projectData["user_tags"])
+                    {
+                        projectInfo.m_userTags.append(Py_To_String(tag));
+                    }
                 }
             }
             catch ([[maybe_unused]] const std::exception& e)

Code/Tools/ProjectManager/Source/UpdateProjectCtrl.cpp

@@ -58,7 +58,7 @@ namespace O3DE::ProjectManager
         tabWidget->tabBar()->setObjectName("projectSettingsTabBar");
         tabWidget->addTab(m_updateSettingsScreen, tr("General"));
 
-        QPushButton* gemsButton = new QPushButton(tr("Add More Gems"), this);
+        QPushButton* gemsButton = new QPushButton(tr("Configure Gems"), this);
         topBarHLayout->addWidget(gemsButton);
         tabWidget->setCornerWidget(gemsButton);
 
@@ -189,7 +189,7 @@ namespace O3DE::ProjectManager
     {
         if (m_stack->currentIndex() == ScreenOrder::Gems)
         {
-            m_header->setSubTitle(QString(tr("Add More Gems to \"%1\"")).arg(m_projectInfo.m_projectName));
+            m_header->setSubTitle(QString(tr("Configure Gems for \"%1\"")).arg(m_projectInfo.m_projectName));
             m_nextButton->setText(tr("Confirm"));
         }
         else