Fixed mouse wheel handling in code editor should completion window get closed by external event.
Fixed bracket search in code editor.
Improved completion window for C# by adding async keyword and prioritizing entries by their kind (field/property etc.).
Completion window for HLSL will only popup when pressing Ctrl + Space.

It will also only show predefined functions and parameters as no proper AST for HLSL available.
fix for not creating a comment in top/left of newly created subpatch
MouseMatch node should not produce two double clicks out of three single clicks anymore.
Fixed compile error in previous commit.