fix(cdk/menu): close sibling triggers when opening a menu

[mistrykaran91]

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Currently, when any sibling menu is opened then it overlaps and in cases it freezes and makes the screen unresponsive. This fix will close any sibling menu if its open.

BREAKING CHANGE:

• Relocate the class ContextMenuTracker to file src/cdk/menu/menu-trigger-base.ts so that it is at the common location for both the menu triggers.
• Rename the class ContextMenuTracker to MenuTracker so that can be used by both CdkMenuTrigger and CdkContextMenuTrigger.

Fixes #30881