[utkuhalis]

What this adds

• VK's second batch: am, cs, da, fil, hu, km, ko, lo, ms, no, ro, sv, zh-Hans and zh-Hant. Each one is about 76 % translated (check_translations).
• The languages we already had (ar, bho, bn, de, hi, id, ja, ru, ur) keep our files. VK's de.json lost about 392 letters to "?".
• Each new file gets its thousands separator and decimal mark from macOS's CLDR data.

Texts left out (they show in English)

• A "?" in place of a letter: hu 22, da 2 (aboutText, enginePrerelease), sv 2 (aboutText, startingText), no 1 (aboutText), ro 1 (togetherStart).
• Thai letters in Khmer and Lao words: km engineArmName, engineArmWhyDetail, togetherNoLinks, and lo profilePlayingNow. An Amharic "፤" in Khmer: km saveSyncNoFolder, engineGitBuiltAt.
• English that says more now: replayBufferDetail and syncFolderNone, in every new file.
• padBatteryAbout and presenceAppearOffline, which en.json no longer has.
• reportLauncherDetail takes the repository's new name, as Use the repository's new name #48 did for the other files.
• am exportThemeDetail ended with "፤". It ends with "።" now.
• km checkForUpdatesDetail had the English sentence in brackets after the Khmer one. The brackets are gone.

The first start

• Language.matchLocale picks the first of the computer's languages the launcher has.
• zh, zh-CN and zh-SG read zh-Hans. zh-TW, zh-HK, zh-MO and any Hant locale read zh-Hant.
• nb, nn and no read no.json. fil and tl read fil.json.
• Only without a preferences file. A launcher that has one keeps its language.
• The Mac launcher has the same rules (AnyTogether/AnyPS5-ARM, next PR).

The first step

• 28 cards in six columns did not fit at 1600x900: the step overflowed by 102 px.
• The step now has seven columns, and the cards share the space the step has.
• A long name like Bahasa Indonesia is drawn smaller and is never cut off.

The check

• _sentenceEnd accepts the Khmer khan "។".
• A placeholder may stand in Chinese full-width brackets after the full stop: "。（%@）".
• Lao ends sentences with "." and Amharic with "።", which the check already accepts.

Fonts

• Figtree has Latin only. Flutter draws other scripts with a system font.
• The deb now recommends fonts-noto-core and fonts-noto-cjk. fonts-noto-core has the Khmer, Lao and Ethiopic Noto fonts.
• Windows and Linux rendering was not checked on a real machine. The goldens draw non-Latin text as boxes.

Checks

• flutter analyze: no issues.
• dart run tool/check_translations.dart: passes.
• flutter test: two together tests failed under load, a different one in each full run. Both files pass alone, twice.
• New goldens: update_notice for each new language, and onboarding_language.