Shields panel is not translated

[btlechowski]

Follow up from #2831

Steps to Reproduce

1. Change Brave language to French
2. Open Brave Shields

Actual result:

Brave shields panel is not translated

Expected result:

Brave shields panel is translated to French

Reproduces how often:

always

Brave version (brave://version info)

Brave	0.59.28 Chromium: 72.0.3626.64 (Official Build) beta(64-bit)
Revision	eaa9668e80ce5405e7f1902579558ea725c06ca1-refs/branch-heads/3626@{#708}
OS	Windows

cc @brave/legacy_qa @bbondy

[kjozwiak]

@btlechowski do you know if this affects other locales or just French?

[LaurenWags]

@kjozwiak I reproduced on other locales (like Germany/German) as well

Brave	0.59.28 Chromium: 72.0.3626.64 (Offizieller Build) beta(64-Bit)
Überarbeitung	eaa9668e80ce5405e7f1902579558ea725c06ca1-refs/branch-heads/3626@{#708}
Betriebssystem	Mac OS X

[btlechowski]

@kjozwiak reproduced on following locales: Polish, Czech, German, Dutch, Danish, Finnish, Italian, Japanese, Korean, Norwegian, Russian, Spanish.

Sanity checked all above locales for any missing strings.
Found: #3094 #3095

[btlechowski]

Verification passed on

Brave	0.60.44 Chromium: 72.0.3626.109 (Official Build) (64-bit)
Revision	fae8db7ab9280fa6704a59980263c804f809ebd5-refs/branch-heads/3626@{#857}
OS	Windows 7

Verified languages:
Arabic, Bulgarian, Chinese(Traditional), Croatian, Czech, Danish, Dutch, Finish, French, German, Greek, Hebrew, Hungarian, Italian, Japanese, Korean, Lithuanian, Polish, Portuguese, Russian, Slovak, Slovenian, Spanish, Turkish, Vietnamese

Norwegian not translated. Logged: #3425

Verified passed with

Brave	0.60.44 Chromium: 72.0.3626.109 (Official Build) (64-bit)
Revision	fae8db7ab9280fa6704a59980263c804f809ebd5-refs/branch-heads/3626@{#857}
OS	Mac OS X

• Verified languages above.
• Encountered logged issue Shields Panel and Rewards Panel are not translated to Norwegian #3425

Verification PASSED on Mint 19.1 x64 VM using the following build:

Brave	0.60.45 Chromium: 72.0.3626.109 (Official Build) (64-bit)
Revision	fae8db7ab9280fa6704a59980263c804f809ebd5-refs/branch-heads/3626@{#857}
OS	Linux

• Went through all the languages mentioned above. Issue with Norwegian also reproduces on Linux. Commented on Shields Panel and Rewards Panel are not translated to Norwegian #3425.