Improve inspector hover inspection and setting discoverability

I'm trying to dig through a big widget tree via the inspector in the browser. If I dare to let my cursor pause for just a moment, I get a massive popup about the widget under my cursor. This popup covers half the tree display, and it consumes scroll behavior. It's hugely annoying and makes it nearly impossible to click around the tree.

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**DevTools version**: 2.28.1
**IDE**: Android-Studio
**Connected Device**:
CPU / OS: arm64 (64 bit) ios
Connected app type: Flutter native (debug build)
Dart Version: 3.3.0-26.0.dev
Flutter Version: 3.16.0-12.0.pre.41 / master
Framework / Engine: 4b72a6e831 / 472be42e90

Start by reproducing the hover popup behavior in the browser inspector while navigating a large widget tree. Read the inspector hover-inspection and settings-discoverability entry points, then determine the intended interaction from the issue. Done means the popup no longer obstructs tree navigation or consumes scrolling, and the relevant setting is easy to find.

Scritto dal modello di indicizzazione a partire dal testo della issue.