Revise Assistant strings for Related Info.

Per request, modifying Assistant strings for Related Info. These
strings occur in Chrome Settings and Assistant OOBE.

See bug for screenshots.

Bug: b:119503388
Change-Id: I9219c59dceac4207061e978efe68633f89d7034b
Reviewed-on: https://chromium-review.googlesource.com/c/1334279Reviewed-by: Ken Rockot <rockot@google.com>
Reviewed-by: Xiaohui Chen <xiaohuic@chromium.org>
Commit-Queue: David Black <dmblack@google.com>
Cr-Commit-Position: refs/heads/master@{#607871}

chrome/app/chromeos_strings.grdp

@@ -3214,7 +3214,7 @@
     Related info
   </message>
   <message name="IDS_ASSISTANT_SCREEN_CONTEXT_DESC" desc="Description for assistant screen context optin.">
-    Let the Assistant give suggestions based on what's on your screen
+    Let the Assistant show you info related to what's on your screen
   </message>
   <message name="IDS_ASSISTANT_GET_MORE_SCREEN_TITLE" desc="Title for assistant get more screen.">
     Get the most out of your Assistant

chrome/app/settings_strings.grdp

@@ -2711,7 +2711,7 @@
     Related info
   </message>
   <message name="IDS_SETTINGS_GOOGLE_ASSISTANT_ENABLE_CONTEXT_DESCRIPTION" desc="Sub label for context-enable toggle.">
-    Let the Assistant give suggestions based on what's on your screen
+    Let the Assistant show you info related to what's on your screen
   </message>
   <message name="IDS_SETTINGS_GOOGLE_ASSISTANT_ENABLE_HOTWORD" desc="Title for a toggle that lets the assistant detect hotword.">
     "Ok Google"