fix: enable ui in helm deployments

[rogly]

What this PR does / why we need it:

• Sets ui.enabled to True to Loki ConfigMap when loki.ui.enabled is set to True to enable UI on pods deployed by the chart.

Which issue(s) this PR fixes:
Fixes #17561

Special notes for your reviewer:

Checklist

• [ ✅] Reviewed the CONTRIBUTING.md guide (required)
• [✅ ] Documentation added
• [ ❌] Tests updated
• [ ✅] Title matches the required conventional commits format, see here
  • Note that Promtail is considered to be feature complete, and future development for logs collection will be in Grafana Alloy. As such, feat PRs are unlikely to be accepted unless a case can be made for the feature actually being a bug fix to existing behavior.
• [ ❌] Changes that require user attention or interaction to upgrade are documented in docs/sources/setup/upgrade/_index.md
• [❌ ] If the change is deprecating or removing a configuration option, update the deprecated-config.yaml and deleted-config.yaml files respectively in the tools/deprecated-config-checker directory. Example PR

[CLAassistant]

All committers have signed the CLA.

[JStickler]

The Loki UI is very experimental. I'm not sure that we want to update the Helm chart to support it yet.

[rogly]

The Loki UI is very experimental. I'm not sure that we want to update the Helm chart to support it yet.

I guess why include it in the values file as an option then? - my point is that the current chart does not function as expected so either the UI flag should be removed from values, or it should be fixed.

[Jayclifford345]

Fair point @rogly, would you mind resolving the conflict in the change log? I have kicked off the automatic tests. If they pass we can get this merged

[rogly]

Fair point @rogly, would you mind resolving the conflict in the change log? I have kicked off the automatic tests. If they pass we can get this merged

@Jayclifford345 Conflict should be resolved now.

[Jayclifford345]

Sorry for the late reply on this one it missed my inbox. I have enabled auto-merge once all the tests pass

[Jayclifford345]

Hey sorry @rogly, please run

make helm-docs

At the top of the loki repo to update the docs