feat(Languages): 👽 add pl-PL language

[patryk20120]

Description

Adding translations for pl-PL language.

Type of Change

Please delete options that are not relevant.

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update, included: Dify Document
• Improvement, including but not limited to code refactoring, performance optimization, and UI/UX improvement
• Dependency upgrade

How Has This Been Tested?

The image of Next.js has been built locally and ran together with original backend images. The pl-PL language was available and working.

• TODO

Suggested Checklist:

• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• My changes generate no new warnings
• I ran dev/reformat(backend) and cd web && npx lint-staged(frontend) to appease the lint gods
• optional I have made corresponding changes to the documentation
• optional I have added tests that prove my fix is effective or that my feature works
• optional New and existing unit tests pass locally with my changes

[crazywoola]

Missing keys in pl-PL: [ 'workflow.common.enableJinja', 'workflow.common.learnMore' ]

[patryk20120]

Missing keys in pl-PL: [ 'workflow.common.enableJinja', 'workflow.common.learnMore' ]

I have added missing keys