MD Settings: Add remaining buttons to keyboard subpage

chrome/app/settings_strings.grdp

Index: chrome/app/settings_strings.grdp
diff --git a/chrome/app/settings_strings.grdp b/chrome/app/settings_strings.grdp
index 7737ec3fe443d785a8915849bf8505679ac50a1a..45586f35dc009e262c2424889f35e495c80a0828 100644
--- a/chrome/app/settings_strings.grdp
+++ b/chrome/app/settings_strings.grdp
@@ -1234,6 +1234,12 @@
     <message name="IDS_SETTINGS_KEYBOARD_AUTO_REPEAT_FAST" desc="The label for the end of the auto-repeat rate slider, representing a fast repeat rate.">
       Fast
     </message>
+    <message name="IDS_SETTINGS_KEYBOARD_SHOW_KEYBOARD_SHORTCUTS_OVERLAY" desc="The link to open the keyboard shortuts overlay.">
+      View keyboard shortcuts
+    </message>
+    <message name="IDS_SETTINGS_KEYBOARD_SHOW_LANGUAGE_AND_INPUT" desc="The link to navigate to the language and input method settings.">
+      Change language and input settings
+    </message>
 
     <!-- Display -->
     <message name="IDS_SETTINGS_DISPLAY_TITLE" desc="In Device Settings, the title for display settings.">