Fix Windows settings popup with mesa 3d openGL emulator (#1428)

By copying the emulator driver next to our binary, our GUI setting popup works on remote desktop connections

the dll is added as part of our sign pipelines workflow

.github/workflows/release.yml

@@ -20,7 +20,7 @@ on:
       - 'client/ui/**'
 
 env:
-  SIGN_PIPE_VER: "v0.0.10"
+  SIGN_PIPE_VER: "v0.0.11"
   GORELEASER_VER: "v1.14.1"
 
 concurrency:

CONTRIBUTING.md

@@ -189,6 +189,8 @@ CGO_ENABLED=0 go build .
 
 > Windows clients have a Wireguard driver requirement. You can download the wintun driver from https://www.wintun.net/builds/wintun-0.14.1.zip, after decompressing, you can copy the file `windtun\bin\ARCH\wintun.dll` to the same path as your binary file or to `C:\Windows\System32\wintun.dll`.
 
+> To test the client GUI application on Windows machines with RDP or vituralized environments (e.g. virtualbox or cloud), you need to download and extract the opengl32.dll from https://fdossena.com/?p=mesa/index.frag next to the built application.
+
 To start NetBird the client in the foreground:
 
 ```

client/installer.nsis

@@ -193,6 +193,7 @@ Sleep 3000
 Delete "$INSTDIR\${UI_APP_EXE}"
 Delete "$INSTDIR\${MAIN_APP_EXE}"
 Delete "$INSTDIR\wintun.dll"
+Delete "$INSTDIR\opengl32.dll"
 RmDir /r "$INSTDIR"
 
 SetShellVarContext all

client/netbird.wxs

@@ -20,6 +20,7 @@
 						<Shortcut Id="NetbirdStartMenuShortcut" Directory="StartMenuFolder" Name="NetBird" WorkingDirectory="NetbirdInstallDir" Icon="NetbirdIcon" />
 					</File>
 					<File ProcessorArchitecture="x64" Source=".\dist\netbird_windows_amd64\wintun.dll" />
+					<File ProcessorArchitecture="x64" Source=".\dist\netbird_windows_amd64\opengl32.dll" />
 
 					<ServiceInstall
                                      Id="NetBirdService"