Add a feature flag for showing Search Educard in QSB

Bug: 243680092
Test: Manual
Change-Id: I3ba1f577df2a5cfb2eb5f7acad20b47980c20916
diff --git a/src/com/android/launcher3/config/FeatureFlags.java b/src/com/android/launcher3/config/FeatureFlags.java
index ff40712..329a24c 100644
--- a/src/com/android/launcher3/config/FeatureFlags.java
+++ b/src/com/android/launcher3/config/FeatureFlags.java
@@ -285,6 +285,9 @@
             "FOLDABLE_WORKSPACE_REORDER", true,
             "In foldables, when reordering the icons and widgets, is now going to use both sides");
 
+    public static final BooleanFlag SHOW_SEARCH_EDUCARD_QSB = new DeviceFlag(
+            "SHOW_SEARCH_EDUCARD_QSB", false, "Shows Search Educard for QSB entry in OneSearch.");
+
     public static void initialize(Context context) {
         synchronized (sDebugFlags) {
             for (DebugFlag flag : sDebugFlags) {