[Autofill] Update Autofill popup according to mocks

Notably, "Chrome Autofill settings..." is back and the padding is much less severe.

Also, the values are bolded.

BUG=567755
TEST=manual

Review URL: https://codereview.chromium.org/1654463002

Cr-Commit-Position: refs/heads/master@{#372552}
diff --git a/components/autofill_strings.grdp b/components/autofill_strings.grdp
index 2f91af8..38c596f 100644
--- a/components/autofill_strings.grdp
+++ b/components/autofill_strings.grdp
@@ -132,20 +132,17 @@
     Privacy Policy
   </message>
 
-  <message name="IDS_AUTOFILL_OPTIONS_POPUP" desc="The text displayed in the Autofill popup to direct the user to the Autofill settings UI.">
-     Manage My Info
-   </message>
-
   <if expr="_google_chrome">
-    <message name="IDS_AUTOFILL_OPTIONS_POPUP_LABEL" desc="The label of the text displayed in the Autofill popup to direct the user to the Autofill settings UI.">
-      Chrome
-    </message>
+    <message name="IDS_AUTOFILL_OPTIONS_POPUP" desc="The text displayed in the Autofill popup to direct the user to the Autofill settings UI.">
+     Chrome Autofill settings...
+   </message>
   </if>
   <if expr="not _google_chrome">
-    <message name="IDS_AUTOFILL_OPTIONS_POPUP_LABEL" desc="The label of the text displayed in the Autofill popup to direct the user to the Autofill settings UI.">
-      Chromium
+    <message name="IDS_AUTOFILL_OPTIONS_POPUP" desc="The label of the text displayed in the Autofill popup to direct the user to the Autofill settings UI.">
+      Chromium Autofill settings...
     </message>
   </if>
+
   <message name="IDS_AUTOFILL_OPTIONS_CONTENT_DESCRIPTION" desc="The text verbalised by a screen reader for the button that directs the user to the Autofill settings UI. This string is not displayed.">
     settings
   </message>