[Desktop] Follow up to #9975 - Make grammar consistent for titles and dropdowns on brave://settings/shields

[btlechowski]

Follow up to #9975 - The grammar changes are not reflected in locales other than us

Steps to Reproduce

1. Run Brave in Polish (PL) locale
2. Open brave://settings/shields

Actual result:

Changes to drop downs from #9975 are not reflected

Expected result:

Changes to drop downs from #9975 are reflected

Reproduces how often:

100% repro rate

Brave version (brave://version info)

Brave	1.11.65 Chromium: 83.0.4103.97 (Official Build) dev (64-bit)
Revision	326d148b9655369b86498d9ecca39f63dd2bdd2d-refs/branch-heads/4103@{#657}
OS	Ubuntu 18.04 LTS

Brave	1.12.28 Chromium: 83.0.4103.106 (Official Build) nightly (64-bit)
Revision	ce7134bb3d95141cd18f1e65772a4247f282d950-refs/branch-heads/4103@{#694}
OS	Windows 7 Service Pack 1 (Build 7601.24544)

cc @brave/legacy_qa @mkarolin @bsclifton @rebron @simonhong @karenkliu

[btlechowski]

Verification passed on

Brave	1.24.16 Chromium: 89.0.4389.105 (Official Build) nightly (64-bit)
Revision	14f44e21a9d539cd49c72468a29bfca4fa43f710-refs/branch-heads/4389_90@{#7}
OS	Ubuntu 18.04 LTS

Verified test plan from the description. Verified changes from #9975 were applied