Rename SunshineSvc to SunshineService

This avoids a MalwareBytes false positive.

Fixes #1126

src_assets/windows/misc/service/install-service.bat

@@ -3,13 +3,17 @@
 rem Get sunshine root directory
 for %%I in ("%~dp0\..") do set "ROOT_DIR=%%~fI"
 
-set SERVICE_NAME=sunshinesvc
+set SERVICE_NAME=SunshineService
 set SERVICE_BIN="%ROOT_DIR%\tools\sunshinesvc.exe"
 
 rem Set service to demand start. It will be changed to auto later if the user selected that option.
 set SERVICE_START_TYPE=demand
 
-rem Check if sunshinesvc already exists
+rem Remove the legacy SunshineSvc service
+net stop sunshinesvc
+sc delete sunshinesvc
+
+rem Check if SunshineService already exists
 sc qc %SERVICE_NAME% > nul 2>&1
 if %ERRORLEVEL%==0 (
     rem Stop the existing service if running