Android translate to BETA 100%

[atuchin-m]

Related #338

[kjozwiak]

For the above, I'm just going to check/ensure that Brave Translate gets enabled via Girffin rather than QAing the general functionality like I usually do as @stephendonner already went through it via brave/brave-browser#23770 (comment) & brave/brave-browser#23768 (comment) and confirmed that things are working as expected via 1.43.x. We're just enabling it by default via Griffin on BETA.

Used instructions via brave/brave-core#10408 (comment) as per the following:

BETA channel

Verification PASSED on Samsung S10+ running Android 12 via the following PR(s):

Brave | 1.44.68 Chromium: 105.0.5195.68 (Official Build) beta (32-bit)
--- | ---
Revision | ad13e82529051bac6a0e65f455e6d7a1e5fd7938-refs/branch-heads/5195@{#903}
OS | Android 12; Build/SP1A.210812.016

• installed 1.44.68 Chromium: 105.0.5195.68 and ensured that BraveTranslateAndroidStudy wasn't under brave://version
• visited https://speigel.de and ensured that the translation UI wasn't visible as the Griffin study hasn't loaded/come into affect

Example	Example

• restarted the browser and ensured BraveTranslateAndroidStudy:Enabled via brave://version
• visited https://speigel.de and ensured that the Brave Translate UI appeared
• clicked on English and ensured that the page was being translated

Example	Example	Example

Release channel

Verification PASSED on Samsung S10+ running Android 12 via the following PR(s):

Brave | 1.42.97 Chromium: 104.0.5112.102 (Official Build) (32-bit)
--- | ---
Revision | 8e5396254975ef939f2ef7d0bd334e48a052b536-refs/branch-heads/5112@{#1478}
OS | Android 12; Build/SP1A.210812.016

• ensured that BraveTranslateAndroidStudy doesn't appear under brave://version after restarting the browser
• ensured that visiting https://speigel.de doesn't trigger the Brave Translate UI at the bottom of the page

Example	Example