Migrate vega and graph configs to new platform

[flash1293]

Depends on #56763

This PR gets rid of injected vars usage for Graph and vega config keys.
It also renames vega.* to vis_type_vega.* to be consistent with other visualization types. If the old config prefix is used, a warning is shown.

[flash1293]

Jenkins, test this

[elasticmachine]

💔 Build Failed

• continuous-integration/kibana-ci/pull-request
• Commit: 27cbebc

---

Test Failures

Kibana Pipeline / kibana-intake-agent / Jest Integration Tests.packages/kbn-plugin-generator/integration_tests.running the plugin-generator via 'node scripts/generate_plugin.js plugin-name' with default config then running 'yarn test:browser' should exit 0

Link to Jenkins

Standard Out

Failed Tests Reporter:
  - Test has not failed recently on tracked branches

Stack Trace

Error: Command failed with exit code 3: yarn test:browser
    at makeError (/var/lib/jenkins/workspace/elastic+kibana+pipeline-pull-request/kibana/node_modules/execa/lib/error.js:56:11)
    at handlePromise (/var/lib/jenkins/workspace/elastic+kibana+pipeline-pull-request/kibana/node_modules/execa/index.js:114:26)
    at process._tickCallback (internal/process/next_tick.js:68:7)

---

To update your PR or re-run it, just comment with:
@elasticmachine merge upstream

[elasticmachine]

Pinging @elastic/kibana-app (Team:KibanaApp)

[kertal]

@elasticmachine merge upstream

[kertal]

Code LGTM 👍, tested locally in chrome and starting Kibana with
yarn start --vis_type_vega.enableExternalUrls=true

✅ works

yarn start --vega.enableExternalUrls=true

✅ works and found the expected output in the server startup logs:
log [16:16:42.561] [warning][config][deprecation] "vega.enableExternalUrls" is deprecated and has been replaced by "vis_type_vega.enableExternalUrls"

[kertal]

This is nice ❤️, so for now it doesn't break

[flash1293]

I have no idea why this is failing - the logs report an error within Joi:

13:21:18         │         313 modules
13:21:18         │          
13:21:18         │          ERROR in /dev/shm/workspace/kibana/node_modules/joi/lib/types/string/index.js
13:21:18         │          Module not found: Error: Can't resolve 'net' in '/dev/shm/workspace/kibana/node_modules/joi/lib/types/string'

[flash1293]

@elasticmachine merge upstream

[kibanamachine]

💚 Build Succeeded

• continuous-integration/kibana-ci/pull-request
• Commit: 86bf35b

History

• 💔 Build #26454 failed 3c29639
• 💚 Build #26189 succeeded 8325a36
• 💚 Build #25633 succeeded 067efb8
• 💚 Build #25498 succeeded 1beb30c
• 💔 Build #25492 failed a755458

To update your PR or re-run it, just comment with:
@elasticmachine merge upstream