chore: pull 2.6.0 translations from transifex

[ovitrif]

Twin: synonymdev/bitkit-ios#937
Refs: #1489

Description

• Adds the translations Transifex already has that the repo was missing, merged key by key so no existing translation is removed or replaced.
• Restores 4 profile onboarding strings in German, Spanish, French and Polish, plus those 4 and other__coming_soon in Portuguese (21 strings). Transifex holds nothing else for Android that the repo lacks.
• Keeps the repo's value wherever Transifex differs: about 11–14 strings per locale whose English changed after the last Transifex sync, and security__cp_title in French, Dutch and Polish, where the repo copy is newer.

Out of Scope

• Pubky/Paykit and other 2.6.0 strings: Transifex has no translations for them yet. Every locale still misses all 225 Pubky/Paykit strings (profile, contacts, subscriptions) and about 566 strings in total (ar 571, pt 570). An AI-assisted PR will fill them; payment, security and recovery copy needs native review.
• Transifex source: the 2.6.0 English strings are not pushed yet; that needs a Transifex maintainer.

Design

N/A — no UI changes.

Preview

N/A — translation-only change.

QA Notes

Journeys

N/A — no user-visible behaviour change.

Manual Tests

N/A

Automated Checks

• ran XML parse of every changed strings.xml — files are well-formed
• ran key-level check of each added string — Transifex English matches the current English, placeholders and markup match, and the value differs from English

[ovitrif]

Closing: Transifex has no Android translations the repo is missing for strings the app uses. Its only extra strings are 4 slashtags__ profile keys and other__coming_soon in de, es, fr, pl and pt, and no Kotlin code references them; they were dropped from these locales in #824. The 2.6.0 gap, including all 225 Pubky/Paykit strings in every locale, needs the AI-assisted fill tracked in #1489.