Attention in Rewards is translated as NB/OBS in Norwegian locale

[btlechowski]

I have doubts this is a proper translation

Steps to Reproduce

Test case 1 - Brave Panel

1. Change locale to Norwegian
2. Enable rewards
3. Open brave.com
4. Open Brave Panel

Test case 2 - brave://rewards

1. Change locale to Norwegian
2. Enable rewards
3. Open brave://rewards

Actual result:

Attention in Rewards is translated as NB/OBS

Expected result:

Not sure what should Attention be translated into.

Reproduces how often:

100% repro rate

Brave version (brave://version info)

Reproduced on all channels

Brave	1.4.95 Chromium: 80.0.3987.122 (Official Build) (64-bit)
Revision	cf72c4c4f7db75bc3da689cd76513962d31c7b52-refs/branch-heads/3987@{#943}
OS	Windows 7 Service Pack 1 (Build 7601.24544)

Brave	1.7.22 Chromium: 80.0.3987.122 (Official Build) nightly (64-bit)
Revision	cf72c4c4f7db75bc3da689cd76513962d31c7b52-refs/branch-heads/3987@{#943}
OS	Windows 7 Service Pack 1 (Build 7601.24544)

cc @brave/legacy_qa @rebron @mkarolin