feat: Add chat file name in top bar

ChatView/qml/RootItem.qml

@@ -72,6 +72,9 @@ ChatRootView {
             tokensBadge {
                 text: qsTr("tokens:%1/%2").arg(root.inputTokensCount).arg(root.chatModel.tokensThreshold)
             }
+            recentPath {
+                text: qsTr("Latest chat file name: %1").arg(root.chatFileName.length > 0 ? root.chatFileName : "Unsaved")
+            }
         }
 
         ListView {

ChatView/qml/parts/TopBar.qml

@@ -28,6 +28,7 @@ Rectangle {
     property alias loadButton: loadButtonId
     property alias clearButton: clearButtonId
     property alias tokensBadge: tokensBadgeId
+    property alias recentPath: recentPathId
 
     color: palette.window.hslLightness > 0.5 ?
                Qt.darker(palette.window, 1.1) :
@@ -62,6 +63,14 @@ Rectangle {
             text: qsTr("Clear")
         }
 
+        Text {
+            id: recentPathId
+
+            Layout.fillWidth: true
+            elide: Text.ElideMiddle
+            color: palette.text
+        }
+
         Item {
             Layout.fillWidth: true
         }