Add a keybindings manager widget

shell/plugins/panels/keybinds/KeybindsHeader.qml

@@ -0,0 +1,44 @@
+import QtQuick
+import qs.Commons
+import qs.Ui
+
+Item {
+  id: root
+
+  signal addRequested()
+  signal closeRequested()
+
+  implicitHeight: Math.max(title.implicitHeight, buttons.implicitHeight)
+
+  Text {
+    id: title
+    anchors.left: parent.left
+    anchors.right: buttons.left
+    anchors.rightMargin: Style.spaceReal(8)
+    anchors.verticalCenter: parent.verticalCenter
+    text: "Keybindings"
+    textFormat: Text.PlainText
+    elide: Text.ElideRight
+    color: Color.foreground
+    font.family: Style.font.family
+    font.pixelSize: Style.font.body
+    font.bold: true
+  }
+
+  Row {
+    id: buttons
+    anchors.right: parent.right
+    anchors.verticalCenter: parent.verticalCenter
+    spacing: Style.spaceReal(4)
+
+    CardIconButton {
+      icon: ""
+      onActivated: root.addRequested()
+    }
+
+    CardIconButton {
+      icon: ""
+      onActivated: root.closeRequested()
+    }
+  }
+}