ACM-30321 Fix AWS instance type

[aswinsuryan]

c5d.large is not working so changed to m5.xlarge

📝 Summary

"subctl cloud prepare aws" creates machine that will not be provisioned as node
Ticket Summary (Title):

Ticket Link:
https://issues.redhat.com/browse/ACM-30321

Type of Change:

• 🐞 Bug Fix
• ✨ Feature
• 🔧 Refactor
• 💸 Tech Debt
• 🧪 Test-related
• 📄 Docs

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✅ Checklist

General

• PR title follows the convention (e.g. ACM-12340 Fix bug with...)
• Code builds and runs locally without errors
• No console logs, commented-out code, or unnecessary files
• All commits are meaningful and well-labeled
• All new display strings are externalized for localization (English only)
• (Nice to have) JSDoc comments added for new functions and interfaces

If Feature

• UI/UX reviewed (if applicable)
• All acceptance criteria met
• Unit test coverage added or updated
• Relevant documentation or comments included

If Bugfix

• Root cause and fix summary are documented in the ticket (for future reference / errata)
• Fix tested thoroughly and resolves the issue
• Test(s) added to prevent regression

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🗒️ Notes for Reviewers

Summary by CodeRabbit

• Chores
  • Updated the default AWS instance type configuration for Submariner gateway nodes across all supported locales.

[openshift-ci]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: aswinsuryan
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[coderabbitai]

📝 Walkthrough

Walkthrough

Updated the default AWS EC2 instance type for Submariner gateway nodes from c5d.large to m5.xlarge across localization files in English, Spanish, French, Japanese, Korean, and Chinese, as well as in the TypeScript configuration source.

Changes

Cohort / File(s)	Summary
Translation Files frontend/public/locales/en/translation.json, frontend/public/locales/es/translation.json, frontend/public/locales/fr/translation.json, frontend/public/locales/ja/translation.json, frontend/public/locales/ko/translation.json, frontend/public/locales/zh/translation.json	Updated AWS instance type default from c5d.large to m5.xlarge in the Submariner instance type help text across all supported language translations.
Configuration frontend/src/resources/submariner-config.ts	Updated the default AWS instance type value in submarinerConfigDefault from c5d.large to m5.xlarge.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

Poem

🐰 A hop, skip, and a type update too,
From c5d to m5 we flew,
Submariner nodes now shine so bright,
Across all tongues, the config's right!

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Title check	✅ Passed	The pull request title 'ACM-30321 Fix AWS instance type' clearly and concisely summarizes the main change of updating the default AWS instance type from c5d.large to m5.xlarge across configuration and translation files.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Description check	✅ Passed	The PR description follows the required template structure with all major sections present, including ticket summary, ticket link, type of change, checklist, and notes for reviewers.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment

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