Minor Bug: On Install, "bar mode for vertical scroll bar" is not enacted

[JDoucette]

Summary:

On install, the Map Mode vs Bar Mode is not respected.
Resetting the settings (change, then change back) makes it be respected.

Repro:

1. Launch VS 2022
2. note that default VS 2022 setting is Map Mode (showing a mini-map with the scroll bar)
3. set Bar Mode (map is not visible) for Vertical scroll bar (via Right click scroll bar, click Scroll Bar Options)
4. open any non-HLSL file (C#, C++, etc.)
5. note that the mini-map (Map Mode) is not showing, as we are in Bar Mode.
6. all is well
7. install HLSL Tools
8. open a .fx file
9. see incorrect result: mini-map shows, when we are in Bar Mode.
10. reset to Map Mode (original VS 2022 setting)
11. reset to Bar Mode (to remove the mini-map)
12. now see correct result: Bar Mode is now correctly showing (no mini-map).