time_left_for_app: increasing limit

Bug: 123638440
Change-Id: I20a444edfdad737206fcbcb9ab5c2b7c1d1973da
Tests: emulated a string with this size
diff --git a/quickstep/res/values/strings.xml b/quickstep/res/values/strings.xml
index 0c741a1..ec33dfc 100644
--- a/quickstep/res/values/strings.xml
+++ b/quickstep/res/values/strings.xml
@@ -60,6 +60,6 @@
     <string name="app_in_grayscale">App in grayscale</string>
 
     <!-- Annotation shown on an app card in Recents, telling that the app has a usage limit set by
-    the user, and a given time is left for it today [CHAR LIMIT=20] -->
+    the user, and a given time is left for it today [CHAR LIMIT=22] -->
     <string name="time_left_for_app"><xliff:g id="time" example="7 minutes">%1$s</xliff:g> left today</string>
 </resources>
\ No newline at end of file