Currently, signal migration schematics in best effort mode doesn't do a very good job migrating input writes when there is a nested property access in templates.

In event handlers, no attempt is made to migrate a nested access in the left-hand-side of assignments or anything in their right-hand-side. E.g., nothing will happen here:

`(ngModelChange)="inputD.prop = $event + inputF"`.

Additionally, when a migration attempt is made, parentheses are often incorrectly placed on the parent, both in event handlers and two-way bindings:

`(ngModelChange)="inputC = $event"` is migrated to `(ngModelChange)="inputC = $event()"`.

`[(ngModel)]="inputB.prop.prop"` is migrated to `[(ngModel)]="inputB.prop().prop"`.

The Aria menubar examples render each menu in a `cdkConnectedOverlay`,
which detaches the top-most overlay on every Escape keypress
(`disableClose` defaults to `false`). The top-level menus are always
attached, so a detached overlay never reattaches and its `viewChild`
reference becomes `undefined`. Holding Escape detaches the overlays one by
one, permanently breaking menus such as "Insert" and "Format".

Set `cdkConnectedOverlayDisableClose` on the example overlays so the menu
pattern remains the single owner of open/close state, matching the
combobox and toolbar examples. Applied to the basic, disabled, and rtl
menubar examples (and their material/retro variants).

Update and streamline the Model Context Protocol (MCP) server setup guide. This includes revising tool descriptions, replacing multiple experimental tools with a single target runner option, updating configurations for supported IDEs, and removing obsolete setup sections.

See associated pull request for more information.

…Config`