fix(deps): update dependency i18next to v21

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
i18next (source)	20.6.1 -> 21.6.4

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Release Notes

i18next/i18next

v21.6.4

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• fix: skipOnVariables (and all other interpolation options should respect defaults) 1711

v21.6.3

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• types: wait option does not exist anymore for react-i18next

v21.6.2

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• remove console.log statement

v21.6.1

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• fix when completely lazy loading namespaces 1709

v21.6.0

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• add _zero suffix lookup if count === 0 1705

v21.5.6

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• fix: correct defaults for plural forms (if supplied) 1703

v21.5.5

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• fix: prevent TypeError when using returnObjects: true with non string values 1702

v21.5.4

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• include version info in generated package.json of esm dist

v21.5.3

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• do not use options.interpolation reference

v21.5.2

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• missing named exports for TypeScript usage 1692

v21.5.1

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• add package.json to exports subpath

v21.5.0

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• named exports for esm usage 1681

v21.4.2

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• trim multiple formatters, fixes 1689

v21.4.1

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• rtl fix for -arab language codes

v21.4.0

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• bind all i18next functions to this, this way you can for example just use t() instead of i18n.t() 1682

v21.3.3

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• apply default interpolation formatter when interpolation options don't specify one 1680

v21.3.2

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• formatter typescript declarations 1679

v21.3.1

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• get rid of internal isDummy check to prevent react-native issue 1675

v21.3.0

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• adds support for formats provided by Intl API (number, currency, datetime, relativedate, list)

v21.2.6

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• optimize do skip natural language detection also if user provided nsSeparator option is passed via direct options

v21.2.5

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• do skip natural language detection also if user provided nsSeparator option is passed 1665

v21.2.4

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• optimize Intl api check

v21.2.3

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• fix Intl.PluralRules fallback

v21.2.2

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• log error if Intl.PluralRules API is not available

v21.2.1

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• do skip natural language detection, if user provided keySeparator option is passed 1670

v21.2.0

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• provide bundled esm distributable 1667

v21.1.1

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• optimize natural language detection 1661

v21.1.0

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• A new RTL support added for ckb language code

v21.0.2

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• fix defaultNS regression if translation namespace is defined in ns option, fixes #​1658

v21.0.1

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• fix typescript typo for skipOnVariables

v21.0.0

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This is a major breaking release:

• introduce new v4 json format (intl plural forms with ordinal support), simplifyPluralSuffix not used anymore
• skipOnVariables by default now is true
• automatically detect natural language keys (no need to set nsSeparator or keySeparator to false)
• remove deprecated whitelist features
• introduce new i18next.resolvedLanguage property

➡️ check out the migration guide

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