chat(build): fix broken installer on macOS (#2973)

Signed-off-by: Jared Van Bortel <jared@nomic.ai>

gpt4all-chat/qml/MyButton.qml

@@ -0,0 +1,43 @@
+import QtCore
+import QtQuick
+import QtQuick.Controls
+import QtQuick.Controls.Basic
+import mysettings
+import mysettingsenums
+
+Button {
+    id: myButton
+    padding: 10
+    rightPadding: 18
+    leftPadding: 18
+    property color textColor: theme.oppositeTextColor
+    property color mutedTextColor: theme.oppositeMutedTextColor
+    property color backgroundColor: theme.buttonBackground
+    property color backgroundColorHovered: theme.buttonBackgroundHovered
+    property real  backgroundRadius: 10
+    property real  borderWidth: MySettings.chatTheme === MySettingsEnums.ChatTheme.LegacyDark ? 1 : 0
+    property color borderColor: theme.buttonBorder
+    property real  fontPixelSize: theme.fontSizeLarge
+    property bool  fontPixelBold: false
+    property alias textAlignment: textContent.horizontalAlignment
+
+    contentItem: Text {
+        id: textContent
+        text: myButton.text
+        horizontalAlignment: myButton.textAlignment
+        color: myButton.enabled ? textColor : mutedTextColor
+        font.pixelSize: fontPixelSize
+        font.bold: fontPixelBold
+        Accessible.role: Accessible.Button
+        Accessible.name: text
+    }
+    background: Rectangle {
+        radius: myButton.backgroundRadius
+        border.width: myButton.borderWidth
+        border.color: myButton.borderColor
+        color: !myButton.enabled ? theme.mutedTextColor : myButton.hovered ? backgroundColorHovered : backgroundColor
+    }
+    Accessible.role: Accessible.Button
+    Accessible.name: text
+    ToolTip.delay: Qt.styleHints.mousePressAndHoldInterval
+}