Viewport processes plugin widget scroll input in play mode

[Sharksie]

https://i.gyazo.com/5ab427b468692e994088bc7a1630f777.mp4

• Make a plugin gui
• Add a scrolling frame
• Scroll it

Observe that the viewport receives the input.

Windows 10

[sircfenner]

Some points of clarification:

1. This only happens in play modes (Play Solo, Test Player, Team Test)
2. Only scroll wheel input is passed through (not any other input types)
3. This repros on an empty widget - no ScrollingFrame required
4. This happens regardless of the DockState that the widget is in

Repro file (save as local plugin):
repro.lua (212 Bytes)

Repro steps:

1. Save repro file as a local plugin
2. Enter play solo, test player, or team test
3. With the mouse over the widget, scroll the mouse wheel
4. Observe that the in-game camera will zoom