refactor: enhance UI components and improve theme properties for better visual consistency

src/pygui/ISC/Tabs/components/SourcePanel.qml

@@ -2,6 +2,7 @@ import QtQuick
 import QtQuick.Controls
 import QtQuick.Layouts
 import ISC
+import ".."
 
 ColumnLayout {
     spacing: 6
@@ -23,6 +24,32 @@ ColumnLayout {
             Layout.alignment: Qt.AlignVCenter
         }
 
+        Button {
+            id: editBtn
+            text: "✎"
+            implicitWidth: 26
+            implicitHeight: 26
+            hoverEnabled: true
+            font.pixelSize: 14
+            background: Rectangle {
+                color: editBtn.pressed ? Theme.buttonPressed
+                     : editBtn.hovered ? Theme.buttonNeutralHover
+                     : "transparent"
+                radius: Theme.radiusSm
+            }
+            contentItem: Text {
+                text: parent.text
+                color: Theme.bodyColor
+                font: parent.font
+                horizontalAlignment: Text.AlignHCenter
+                verticalAlignment: Text.AlignVCenter
+            }
+            onClicked: {
+                file_browser.refreshFiles()
+                csvEditorDialog.open()
+            }
+        }
+
         Button {
             id: refreshBtn
             text: "⟳"
@@ -260,4 +287,9 @@ ColumnLayout {
         color: Theme.bodyColor
         font.pixelSize: 10
     }
+
+    SelectFileDialog {
+        id: csvEditorDialog
+        tableModel: file_browser.files
+    }
 }