fix: Update breadcrumb title for saved and loaded pipeline destination

[JacobLynch]

Problem

When a pipeline destination is saved or loaded you see "Unnamed" in the breadcrumbs. This will update the breadcrumb to be the name of the saved or loaded pipeline destination.

Closes #25807

Changes

After changes you can see the name displaying in the breadcrumbs.

Does this work well for both Cloud and self-hosted?

Should work for both just fine.

How did you test this code?

I tested this code by creating a new Discord pipeline destination, saving it, verifying the name showed up in the breadcrumbs. I also tried refreshing the page and loading an existing destination and verifying the name was showing up correctly.

[greptile-apps]

PR Summary

This PR adds breadcrumb title updates for pipeline destinations in PostHog's frontend, fixing an issue where destinations showed as "Unnamed" in navigation.

• Added setBreadcrumbTitle action call in loadHogFunctionSuccess listener to update title when loading existing destinations
• Added setBreadcrumbTitle action call in upsertHogFunctionSuccess listener to update title after saving destinations
• Connected hogFunctionConfigurationLogic to pipelineNodeLogic to enable breadcrumb title updates
• Ensures breadcrumb title reflects the actual destination name rather than defaulting to "Unnamed"

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[JacobLynch]

Hey @benjackwhite, I think I have a fix for #25807 if you'd like to take a look when you have a chance.

[benjackwhite]

Nice! Not sure why we didn't have that fix ages ago!

[JacobLynch]

@benjackwhite Thanks for the review! Do I need to do anything to get the PR merged?

[benjackwhite]

Merged it!