Add flag to enable a bluetooth dialog when clicking on the bluetooth quick settings tile.

Bug: b/296821508

Test: Manual test
Change-Id: I3d7a152f9699d5f03e7e358ed1ec0910289bdc12
diff --git a/packages/SystemUI/src/com/android/systemui/flags/Flags.kt b/packages/SystemUI/src/com/android/systemui/flags/Flags.kt
index 312f5b7..d67a8d0 100644
--- a/packages/SystemUI/src/com/android/systemui/flags/Flags.kt
+++ b/packages/SystemUI/src/com/android/systemui/flags/Flags.kt
@@ -798,4 +798,8 @@
     // TODO(b/287205379): Tracking bug
     @JvmField
     val QS_CONTAINER_GRAPH_OPTIMIZER = unreleasedFlag( "qs_container_graph_optimizer")
+
+    /** Enable showing a dialog when clicking on Quick Settings bluetooth tile. */
+    @JvmField
+    val BLUETOOTH_QS_TILE_DIALOG = unreleasedFlag("bluetooth_qs_tile_dialog")
 }