(#494) Refresh the sources from file each time

Sometimes (it looks like maybe when the Chocolatey Licensed Extension is
in play) we don't get the sources currently in the configuration file.
If instead of reusing the configuration settings service we instantiate
a new one each time, then it will ensure the configuration file is read
again. This resolves the issue of settings not applying in GUI if
they're made while GUI is running.

Source/ChocolateyGui.Common.Windows/Services/ChocolateyService.cs

@@ -37,7 +37,6 @@ public class ChocolateyService : IChocolateyService
         private static readonly AsyncReaderWriterLock Lock = new AsyncReaderWriterLock();
         private readonly IMapper _mapper;
         private readonly IProgressService _progressService;
-        private readonly IChocolateyConfigSettingsService _configSettingsService;
         private readonly IXmlService _xmlService;
         private readonly IFileSystem _fileSystem;
         private readonly IConfigService _configService;
@@ -46,11 +45,10 @@ public class ChocolateyService : IChocolateyService
 #pragma warning disable SA1401 // Fields must be private
 #pragma warning restore SA1401 // Fields must be private
 
-        public ChocolateyService(IMapper mapper, IProgressService progressService, IChocolateyConfigSettingsService configSettingsService, IXmlService xmlService, IFileSystem fileSystem, IConfigService configService)
+        public ChocolateyService(IMapper mapper, IProgressService progressService, IXmlService xmlService, IFileSystem fileSystem, IConfigService configService)
         {
             _mapper = mapper;
             _progressService = progressService;
-            _configSettingsService = configSettingsService;
             _xmlService = xmlService;
             _fileSystem = fileSystem;
             _configService = configService;
@@ -497,8 +495,8 @@ public async Task<ChocolateySource[]> GetSources()
             // we need to read all information from the config file, i.e. the username and password
             var config = await GetConfigFile();
             var allSources = config.Sources.Select(_mapper.Map<ChocolateySource>).ToArray();
-
-            var filteredSourceIds = _configSettingsService.source_list(_choco.GetConfiguration()).Select(s => s.Id).ToArray();
+            var configSettingsService = new ChocolateyConfigSettingsService(_xmlService);
+            var filteredSourceIds = configSettingsService.source_list(_choco.GetConfiguration()).Select(s => s.Id).ToArray();
 
             var mappedSources = allSources.Where(s => filteredSourceIds.Contains(s.Id)).ToArray();
             return mappedSources;