Implement a global maximum on number of shortcuts an app can publish

Currently there is a limit on the number of shortcuts an app can publish
in respect to each launcher activity. This CL further implements a
global maximum of total number of shortcuts an app can publish to
mitigate from any potential system health issue.

Bug: 250576066
Test: manual
Change-Id: I94b4e39475c7585ec67f15df1256fdf0b65f3bec
Merged-In: I94b4e39475c7585ec67f15df1256fdf0b65f3bec