[Desktop] Continue running background apps when Brave is closed is not translated

[GeetaSarvadnya]

Description

Follow up to: #10735
Continue running background apps when Brave is closed is not translated

Steps to Reproduce

1. Set language to Hindi
2. Open brave://settings
3. Under systems Continue running background apps when Brave is closed is not translated

Actual result:

Continue running background apps when Brave is closed is not translated

Expected result:

Continue running background apps when Brave is closed should be translated

Reproduces how often:

Easy

Brave version (brave://version info)

Brave	1.11.97 Chromium: 84.0.4147.89 (आधिकारिक बिल्ड) (64-बिट)
पुनरीक्षण	19abfe7bcba9318a0b2a6bc6634a67fc834aa592-refs/branch-heads/4147@{#852}
OS	Windows 10 OS Version 1903 (Build 18362.959)

Version/Channel Information:

• Can you reproduce this issue with the current release? Yes
• Can you reproduce this issue with the beta channel? Yes
• Can you reproduce this issue with the dev channel? Yes
• Can you reproduce this issue with the nightly channel? Yes

Other Additional Information:

• Does the issue resolve itself when disabling Brave Shields? NA
• Does the issue resolve itself when disabling Brave Rewards? NA
• Is the issue reproducible on the latest version of Chrome? NA

Miscellaneous Information:

cc: @brave/legacy_qa @mkarolin @rebron

[kjozwiak]

Only applicable to Win and Linux as macOS doesn't have the above option as per the following:

[GeetaSarvadnya]

Verification passed on

Brave | 1.11.99 Chromium: 84.0.4147.89 (Official Build) (64-bit)
-- | --
Revision | 19abfe7bcba9318a0b2a6bc6634a67fc834aa592-refs/branch-heads/4147@{#852}
OS | Windows 10 OS Version 1903 (Build 18362.959)

• Verified the STR from the description
  

Verification passed on

Brave	1.11.99 Chromium: 84.0.4147.89 (Offizieller Build) (64-Bit)
Überarbeitung	19abfe7bcba9318a0b2a6bc6634a67fc834aa592-refs/branch-heads/4147@{#852}
OS	Ubuntu 18.04 LTS