fix(i18n): implement robust translation fallback system for all locales

[dzienisz]

Description

Implement robust translation fallback system for all locales to ensure users always see meaningful text instead of translation keys. This PR fixes the issue where raw translation keys like 'dfu.error_connection_title' were being displayed to users when Polish translations were missing or when the i18n system failed in Pinia store contexts.

Before (Polish language with missing translations)

After (Polish language with missing translations and fallback to english)

Type of Change

• Bug fix (non-breaking change which fixes an issue)
• New feature
• Documentation update
• Other (please describe):

Testing

• I have tested these changes locally
• I have added/updated tests as appropriate
• All existing tests pass

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Hardware Model Acceptance Policy

New Hardware Model Acceptance Policy

Due to limited availability and ongoing support, new Hardware Models will only be accepted from Meshtastic Backers and Partners. The Meshtastic team reserves the right to make exceptions to this policy.

Alternative for Community Contributors

You are welcome to use one of the existing DIY hardware models in your PlatformIO environment and create a pull request in the firmware project. Please note the following conditions:

• The device will not be officially supported by the core Meshtastic team.
• The device will not appear in the Web Flasher or Github release assets.
• You will be responsible for ongoing maintenance and support.
• Community-contributed / DIY hardware models are considered experimental and will likely have limited or no testing.

Getting Official Support

To have your hardware model officially supported and included in the Meshtastic ecosystem, consider becoming a Meshtastic Backer or Partner. Visit meshtastic.com for more information about partnership opportunities.

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Protected Files Notice

The following files are protected and changes to them will be automatically rejected:

• public/data/hardware-list.json - Auto-generated Hardware definitions (additionally see policy above)
• types/resources.ts - Auto-generated resource definitions
• i18n/locales/** - Translation files (managed via Crowdin)

[vercel]

@dzienisz is attempting to deploy a commit to the Meshtastic Team on Vercel.

A member of the Team first needs to authorize it.

[dzienisz]

@thebentern I needed to add actions.reload to not see a key (it was hardcoded) but I can also remove it and somebody can add it in CrowdIn