[M115 Merge][iOS] Add missing string for Password Checkup cell's acce…

…ssibility label

This CL adds a string that is going to be needed to set the
accessibility label of the Password Manager's Password Checkup cell when
there are no insecure passwords.

(cherry picked from commit 38b2e86)

Fixed: 1450002
Change-Id: I357fd59f64cb0f394e7253effc3cbd2377ea050e
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4573755
Commit-Queue: Noémie St-Onge <noemies@google.com>
Reviewed-by: Tommy Martino <tmartino@chromium.org>
Cr-Original-Commit-Position: refs/heads/main@{#1150853}
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4580470
Commit-Queue: Tommy Martino <tmartino@chromium.org>
Auto-Submit: Noémie St-Onge <noemies@google.com>
Cr-Commit-Position: refs/branch-heads/5790@{#227}
Cr-Branched-From: 1d71a33-refs/heads/main@{#1148114}

ios/chrome/app/strings/ios_strings.grd

@@ -2931,6 +2931,9 @@ While in Incognito, sites can't use cookies to see your browsing activity across
       <message name="IDS_IOS_PASSWORD_CHECKUP" desc="Title for the item in Settings for Password Checkup feature." meaning="Label tells the user about status of Password Checkup [CHAR_LIMIT=25] [iOS only]">
         Password Checkup
       </message>
+      <message name="IDS_IOS_PASSWORD_CHECKUP_SAFE_STATE_ACCESSIBILITY_LABEL" is_accessibility_with_no_ui="true" desc="Addition to the accessibility label for the Password Checkup cell in the Password Manager page when the Password Checkup resulted with no insecure passwords. Meaning that all saved passwords are safe. [iOS only]">
+        No issues found
+      </message>
       <message name="IDS_IOS_PASSWORD_CHECKUP_ONGOING" desc="In Title Case: Title for the item in Settings for Password Checkup feature while the checks are running. [CHAR_LIMIT=25] [iOS only]" meaning="In Title Case.">
         Checking Passwords…
       </message>