gRPC API tweaks

[hrischuk-da]

A couple of things

1. remove the "Packages" from the menu.
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2. Simplify the V2 menu by getting rid of the "Services" sub-menu. Change "v2" to "Details and history" that is moved to the bottom of the category, like the other menus.

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3. Similar changes for v2.admin

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4. Simliar for v2.interactive

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5. Smae for v2.tseting

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