Improve keyboard navigation

Simply enabling activeFocusOnTab on a few key elements massively improves the
keyboard navigation. Additionally, making the text box forward tab events when
appropriate allows for focus to pass through it without getitng stuck.

imports/NeoChat/Component/ChatBox/ChatBar.qml

@@ -159,14 +159,16 @@ ToolBar {
                         switchRoomUp();
                         return;
                     }
-                    if (isCompleting) {
-                        let decrementedIndex = completionMenu.currentIndex - 1
-                        // Wrap around to the last item
-                        if (decrementedIndex < 0) {
-                            decrementedIndex = Math.max(completionMenu.count - 1, 0) // 0 if count == 0
-                        }
-                        completionMenu.currentIndex = decrementedIndex
+                    if (!isCompleting) {
+                        nextItemInFocusChain(false).forceActiveFocus(Qt.TabFocusReason)
+                        return
                     }
+                    let decrementedIndex = completionMenu.currentIndex - 1
+                    // Wrap around to the last item
+                    if (decrementedIndex < 0) {
+                        decrementedIndex = Math.max(completionMenu.count - 1, 0) // 0 if count == 0
+                    }
+                    completionMenu.currentIndex = decrementedIndex
                 }
 
                 Keys.onTabPressed: {
@@ -175,6 +177,7 @@ ToolBar {
                         return;
                     }
                     if (!isCompleting) {
+                        nextItemInFocusChain().forceActiveFocus(Qt.TabFocusReason);
                         return;
                     }
 

imports/NeoChat/Page/RoomListPage.qml

@@ -48,6 +48,8 @@ Kirigami.ScrollablePage {
     ListView {
         id: listView
 
+        activeFocusOnTab: true
+
         Kirigami.PlaceholderMessage {
             anchors.centerIn: parent
             width: parent.width - (Kirigami.Units.largeSpacing * 4)

imports/NeoChat/Panel/RoomDrawer.qml

@@ -147,6 +147,7 @@ Kirigami.OverlayDrawer {
 
         Kirigami.ListSectionHeader {
             label: i18n("Members")
+            activeFocusOnTab: false
             Label {
                 Layout.alignment: Qt.AlignRight
                 text: room ? i18np("%1 Member", "%1 Members", room.totalMemberCount) : i18n("No Member Count")
@@ -162,6 +163,7 @@ Kirigami.OverlayDrawer {
                 clip: true
                 headerPositioning: ListView.OverlayHeader
                 boundsBehavior: Flickable.DragOverBounds
+                activeFocusOnTab: true
 
                 header: Pane {
                     padding: Kirigami.Units.smallSpacing