Break the explore models view into two. (#3269)

Signed-off-by: Adam Treat <treat.adam@gmail.com>
Signed-off-by: Jared Van Bortel <jared@nomic.ai>
Signed-off-by: Victor <158754254+SINAPSA-IC@users.noreply.github.com>
Co-authored-by: Jared Van Bortel <jared@nomic.ai>
Co-authored-by: Victor <158754254+SINAPSA-IC@users.noreply.github.com>

gpt4all-chat/qml/MyTabButton.qml

@@ -0,0 +1,26 @@
+import QtCore
+import QtQuick
+import QtQuick.Controls
+import QtQuick.Controls.Basic
+import mysettings
+import mysettingsenums
+
+MySettingsButton {
+    property bool isSelected: false
+    contentItem: Text {
+        text: parent.text
+        horizontalAlignment: Qt.AlignCenter
+        color: isSelected ? theme.titleTextColor : theme.styledTextColor
+        font.pixelSize: theme.fontSizeLarger
+    }
+    background: Item {
+        visible: isSelected || hovered
+        Rectangle {
+            anchors.bottom: parent.bottom
+            anchors.left: parent.left
+            anchors.right: parent.right
+            height: 3
+            color: isSelected ? theme.titleTextColor : theme.styledTextColorLighter
+        }
+    }
+}