deduplicate qml: create and use MyCheckBox and MyTextField

gpt4all-chat/qml/MyCheckBox.qml

@@ -0,0 +1,39 @@
+import QtCore
+import QtQuick
+import QtQuick.Controls
+import QtQuick.Controls.Basic
+
+CheckBox {
+    id: myCheckBox
+
+    background: Rectangle {
+        color: "transparent"
+    }
+
+    indicator: Rectangle {
+        implicitWidth: 26
+        implicitHeight: 26
+        x: saveChatsBox.leftPadding
+        y: parent.height / 2 - height / 2
+        border.color: theme.dialogBorder
+        color: "transparent"
+
+        Rectangle {
+            width: 14
+            height: 14
+            x: 6
+            y: 6
+            color: theme.textColor
+            visible: myCheckBox.checked
+        }
+    }
+
+    contentItem: Text {
+        text: myCheckBox.text
+        font: myCheckBox.font
+        opacity: enabled ? 1.0 : 0.3
+        color: theme.textColor
+        verticalAlignment: Text.AlignVCenter
+        leftPadding: myCheckBox.indicator.width + myCheckBox.spacing
+    }
+}