use utf-8 file encoding for javascript files served by Kestrel
use utf-8 file encoding for javascript files served by Kestrel

LukeWinikates/dotnet-toolbox,dotnet-toolbox/dotnet-toolbox,dotnet-toolbox/dotnet-toolbox,dotnet-toolbox/dotnet-toolbox,LukeWinikates/dotnet-toolbox,LukeWinikates/dotnet-toolbox,dotnet-toolbox/dotnet-toolbox,LukeWinikates/dotnet-toolbox