Examples: DirectX11: use linear sampler to be in sync with other examples.

examples/directx11_example/main.cpp

@@ -474,7 +474,7 @@ void InitImGui()
     {
         D3D11_SAMPLER_DESC desc;
         ZeroMemory(&desc, sizeof(desc));
-        desc.Filter = D3D11_FILTER_MIN_MAG_POINT_MIP_LINEAR;
+        desc.Filter = D3D11_FILTER_MIN_MAG_MIP_LINEAR;
         desc.AddressU = D3D11_TEXTURE_ADDRESS_WRAP;
         desc.AddressV = D3D11_TEXTURE_ADDRESS_WRAP;
         desc.AddressW = D3D11_TEXTURE_ADDRESS_WRAP;