Add default value for container apps if no name is present

[IRCody]

Default container app names to: WorkerName-ClassName[-EnvName]

• Tests
  • [ ] TODO (before merge)
  • [x] Tests included
  • [ ] Tests not necessary because:
• Wrangler / Vite E2E Tests CI Job required? (Use "e2e" label or ask maintainer to run separately)
  • [ ] I don't know
  • [ ] Required
  • [x] Not required because: no e2e changes, config validation only
• Public documentation
  • [ ] TODO (before merge)
  • [ ] Cloudflare docs PR(s):
  • [x] Documentation not necessary because: will be documented as part of container beta docs.
• Wrangler V3 Backport
  • [ ] TODO (before merge)
  • [ ] Wrangler PR:
  • [x] Not necessary because: config option not in v3.

[changeset-bot[bot]]

🦋 Changeset detected

Latest commit: efdcf1125c9c27a5e3288e6dcab6a8c110fe1b9a

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 2 packages

Name	Type
wrangler	Patch
@cloudflare/vitest-pool-workers	Patch

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commit: efdcf11