Update Snaps docs to inform developers Metamask links should not be used in a Snap dialog #1956
Description
Inform developers that Metamask links cannot be used in Snaps dialogs since MetaMask/metamask-extension#29978 is not being fixed.
Currently, MetaMask link functionality only works inside of Snaps UI content that is inside of an expanded notification. Clicking a link inside a Snaps dialog keeps you in the popup and links should not be used in a dialog.