fix template validation in escalade plugin ticket group reassignment …

[Herafia]

…to resolve mandatory requester field error

Checklist before requesting a review

Please delete options that are not relevant.

• I have performed a self-review of my code.
• I have added tests (when available) that prove my fix is effective or that my feature works.
• I have updated the CHANGELOG with a short functional description of the fix or new feature.
• This change requires a documentation update.

Description

• It fixes # (issue number, if applicable)
• Fix: resolve “Mandatory fields are not defined” error during escalation
  Refactored climb_group() to adjust template validation handling
  Fixed JavaScript translation issue (__s is not defined)
  Updated locales

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