Update l10n for Chromium 86.

[mkarolin]

Download the latest l10n from Transifex.

Test plan:
Per prior @kjozwiak's instructions (#10735 (comment)):

@brave/legacy_qa should run through a few locals just to make sure that nothing obvious has regressed. Shouldn't spend too much time on this though.

[srirambv]

Verification passed on OnePlus 6T with Android 10 running 1.15.71

• Verified no obvious translations are missed for NTP/Shields/Settings
• Verified on French/German/Japanese locale

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Verification passed on Samsung Tab A with Android 10 running 1.15.71

• Verified no obvious translations are missed for NTP/Shields/Settings
• Verified on French/German/Japanese locale

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Verified passed with

Brave | 1.15.71 Chromium: 86.0.4240.72 (Offizieller Build) (x86_64)
-- | --
Überarbeitung | 581582174c512f44f44fd1aea340471f54b2365f-refs/branch-heads/4240@{#1134}
Betriebssystem | macOS Version 10.14.6 (Build 18G3020)

Using French and German, generally confirmed that hamburger menu, macOS bar, settings, shields were translated.
Note, some items were not translated and are being logged by @btlechowski

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Verification passed on

Brave	1.15.71 Chromium: 86.0.4240.72 (Official Build) (64-bit)
Revision	581582174c512f44f44fd1aea340471f54b2365f-refs/branch-heads/4240@{#1134}
OS	Ubuntu 18.04 LTS

Verified in Polish locale

Verified NTP, Rewards, Shields and brave://settings

Verified brave://settings/security was translated

Logged #12012 #12013

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Verification passed on

क्रोमियम 1.15.71 Chromium: 86.0.4240.72 (आधिकारिक बिल्ड) (64-बिट)
पुनरीक्षण	581582174c512f44f44fd1aea340471f54b2365f-refs/branch-heads/4240@{#1134}
OS	Windows 10 OS Version 1809 (Build 17763.1397)

• Verified in France, Hindi and Kannada locales
• Verified settings pages below:
  brave://settings/safetyCheck
  brave://settings/cookies
  brave://settings/security
  brave://settings/content
  Brave://rewrads and NTP's
• Encountered Web3 provider for using Dapps in brave://settings/extensions is not translated #12013
• Logged Verify wallet login message isn't translated in brave://rewards settings page for few locales #12017