Add digit alternates

This also re-orders keyboard layout attribute and adds some
android:popupCharacters.

Bug: 2973749
Change-Id: I300fb4029a1844947731cb98a464d8d754cb03ef
diff --git a/java/res/values-cs/altchars.xml b/java/res/values-cs/altchars.xml
index db2213d..d91a0e4 100644
--- a/java/res/values-cs/altchars.xml
+++ b/java/res/values-cs/altchars.xml
@@ -19,16 +19,16 @@
 -->
 <resources xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <string name="alternates_for_a">áàâãäåæ</string>
-    <string name="alternates_for_e">éěèêë</string>
-    <string name="alternates_for_i">íìîï</string>
-    <string name="alternates_for_o">óòôõöœø</string>
-    <string name="alternates_for_u">ůúùûü</string>
+    <string name="alternates_for_e">3éěèêë</string>
+    <string name="alternates_for_i">íìîï8</string>
+    <string name="alternates_for_o">óòôõöœø9</string>
+    <string name="alternates_for_u">ůúùûü7</string>
     <string name="alternates_for_s">š§ß</string>
     <string name="alternates_for_n">ňñ</string>
     <string name="alternates_for_c">čç</string>
-    <string name="alternates_for_y">ýÿ</string>
+    <string name="alternates_for_y">ýÿ6</string>
     <string name="alternates_for_d">ď</string>
-    <string name="alternates_for_r">ř</string>
-    <string name="alternates_for_t">ť</string>
+    <string name="alternates_for_r">ř4</string>
+    <string name="alternates_for_t">ť5</string>
     <string name="alternates_for_z">ž</string>
 </resources>