update newHeader for Index state management policies

[astute-decipher]

Description

This PR updates the new header for Index state management policies

Issues Resolved

[List any issues this PR will resolve]

Check List

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Index state management policy pages (when useNewHomePage is disabled) :

Policy list view :

Policy details view :

Create view (In visual editor) :

Create view (in Json editor) :

Edit policy view (In visual editor) :

Edit policy view (in Json editor) :

Index state management policy pages (when useNewHomePage is enabled) :

Policy list view :

Policy details view :

Create view (In visual editor) :

Create view (in Json editor) :

Edit policy view (In visual editor) :

Edit policy view (in Json editor) :

[SuZhou-Joe]

@astute-decipher Unit test failed, could you please fix that? You can ignore the snapshot part.

[kgcreative]

Small nit:

Edit policy view (In visual editor), and Edit Policy
Both of these views show truncated breadcrumbs. I think we have enough space now that we can show the full breadcrumb when we have the space.

@AMoo-Miki -> See this page as an outlier with long breadcrumbs
@xeniatup -> Let's consider this for mobile behavior as well

[SuZhou-Joe]

The change is a little bit huge but mostly are template code if else to put the headers in new header or leave as is. I would rely on CI / screenshot / UX sign-off to help me verify the changes.