Plugins: Enable feature toggle pluginsDynamicAngularDetectionPatterns by default

[xnyo]

What is this feature?

Enabled pluginsDynamicAngularDetectionPatterns by default and increases the interval for the checks from 1h to 24h to reduce impact once it reaches on-prem customers.

As of today, the feature toggle is rolled out to 100% of prod instances in Grafana Cloud.

Follow up to #82880

You can use this dashboard to monitor the impact on GCOM

Related Slack thread.

Why do we need this feature?

Behavior change for Grafana 11.

Who is this feature for?

Grafana users with Angular plugins.

Which issue(s) does this PR fix?:

Fixes #84647

Special notes for your reviewer:

Should be merged after https://github.com/grafana/grafana-com/pull/9415

Please check that:

• It works as expected from a user's perspective.
• If this is a pre-GA feature, it is behind a feature toggle.
• The docs are updated, and if this is a notable improvement, it's added to our What's New doc.

[xnyo]

/deploy-to-hg

[ephemeral-instances-bot]

• Preparing your instance. A comment containing your instance's url will be added to this PR when the instance is ready.
• Your instance will be ready in ~10 minutes.
• Check the GitHub actions tab to follow the workflow progress
• Slack channel: #proj-ephemeral-hg-instances
• Building instance with giuseppe/pluginsDynamicAngularDetectionPatterns-default-true oss branch and main enterprise branch. How to choose a branch

[ephemeral-instances-bot]

• Your instance can be accessed at: https://ephemeral1511182184723xnyo.grafana-dev.net
• The instance is not using the CDN assets.
• How to access / How to update instance config / How to build a specific branch

[wbrowne]

I'd personally just use *setting.Cfg instead of *config.PluginManagementCfg in pkg/services/pluginsintegration/angulardetectorsprovider/dynamic.go to keep things simpler. WDYT?

[wbrowne]

Nice! 🥇

You can probably remove the dependency on *config.PluginManagementCfg eventually too since we get the GCOM URL from there for plugin management anyways!