Reenabled focusing of tab but removed focus rect

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

Code/Tools/ProjectManager/Resources/ProjectManager.qss

@@ -53,6 +53,11 @@ QTabBar::tab:pressed
 {
     color: #0e60eb;
 }
+QTabBar::focus {
+    outline: 0px;
+    outline: none;
+    outline-style: none;
+ }
 
 /************** General (Forms) **************/
 

Code/Tools/ProjectManager/Source/ScreensCtrl.cpp

@@ -30,7 +30,6 @@ namespace O3DE::ProjectManager
 
         // add a tab widget at the bottom of the stack
         m_tabWidget = new QTabWidget();
-        m_tabWidget->tabBar()->setFocusPolicy(Qt::NoFocus);
         m_screenStack->addWidget(m_tabWidget);
         connect(m_tabWidget, &QTabWidget::currentChanged, this, &ScreensCtrl::TabChanged);
     }

Code/Tools/ProjectManager/Source/UpdateProjectCtrl.cpp

@@ -54,7 +54,6 @@ namespace O3DE::ProjectManager
         QTabWidget* tabWidget = new QTabWidget();
         tabWidget->setObjectName("projectSettingsTab");
         tabWidget->tabBar()->setObjectName("projectSettingsTabBar");
-        tabWidget->tabBar()->setFocusPolicy(Qt::NoFocus);
         tabWidget->addTab(m_updateSettingsScreen, tr("General"));
 
         QPushButton* gemsButton = new QPushButton(tr("Configure Gems"), this);