Docs: enable packages reference docs for 7-beta (#23953)

* added packages reference menu item.

* removed the draft flag.

* Updated docs by running script.

docs/sources/packages_api/e2e-selectors/_index.md

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+# -----------------------------------------------------------------------
+# Do not edit this file. It is automatically generated by API Documenter.
+# -----------------------------------------------------------------------
+title = "@grafana/e2e-selectors"
+keywords = ["grafana","documentation","sdk","@grafana/e2e-selectors"]
+type = "docs"
++++
+
+## @grafana/e2e-selectors package
+
+A library containing the different design components of the Grafana ecosystem.
+
+## Interfaces
+
+|  Interface | Description |
+|  --- | --- |
+|  [Selectors](./selectors/) |  |
+|  [UrlSelector](./urlselector/) |  |
+
+## Variables
+
+|  Variable | Description |
+|  --- | --- |
+|  [selectors](./selectors/) |  |
+
+## Type Aliases
+
+|  Type Alias | Description |
+|  --- | --- |
+|  [CssSelector](./cssselector/) |  |
+|  [E2ESelectors](./e2eselectors/) |  |
+|  [FunctionSelector](./functionselector/) |  |
+|  [StringSelector](./stringselector/) |  |
+