Refines the limit of advanced in edit shortcut dialog.

Root cause: The "Advanced" string is allowed only 10 characters which makes the Czech translation less accurate and clear.
Next: There is enough space for longer message, refines limit to 20 characters.

Bug: 154753232
Test: local test
Change-Id: I60e35bbcfb85acb9a993b8ac9e120971e49fdfaf
diff --git a/res/values/strings.xml b/res/values/strings.xml
index e1eae68..162d9a7 100644
--- a/res/values/strings.xml
+++ b/res/values/strings.xml
@@ -4985,7 +4985,7 @@
     <string name="accessibility_shortcut_edit_dialog_title_triple_tap">Triple-tap screen</string>
     <!-- Summary for triple tap shortcut in accessibility edit shortcut dialog. [CHAR LIMIT=NONE] -->
     <string name="accessibility_shortcut_edit_dialog_summary_triple_tap">Quickly tap screen 3 times. This shortcut may slow down your device.</string>
-    <!-- Title for the accessibility edit shortcut dialog to save the preference when user clicks it. [CHAR LIMIT=10] -->
+    <!-- Title for the accessibility edit shortcut dialog to save the preference when user clicks it. [CHAR LIMIT=20] -->
     <string name="accessibility_shortcut_edit_dialog_title_advance">Advanced</string>
     <!-- Summary text appearing on the accessibility preference screen to enable screen magnification from the nav bar when the feature is enabled, but the accessibility button is not configured correctly for the feature to be used [CHAR LIMIT=none] -->
     <string name="accessibility_screen_magnification_navbar_configuration_warning">The Accessibility button is set to <xliff:g id="service" example="Select to Speak">%1$s</xliff:g>. To use magnification, touch &amp; hold the Accessibility button, then select magnification.</string>