feat: initial config command implementation

src/AltGen.Console/Program.cs

@@ -1,16 +1,4 @@
-// TODO: Need to implement config
-// command. This should allow
-// the user to set default values
-// for provider keys and a default
-// provider.
-//
-// For example setting a providers key
-// i.e. altgen config gemini mykey
-//
-// Or setting provider as default
-// i.e. altgen config gemini mykey --default
-
-await Host.CreateDefaultBuilder(args)
+await Host.CreateDefaultBuilder(args)
   .ConfigureLogging(static l => l.ClearProviders())
   .ConfigureServices(static (_, services) =>
   {
@@ -20,4 +8,4 @@ await Host.CreateDefaultBuilder(args)
       .AddStandardResilienceHandler();
   })
   .BuildApp()
-  .RunAsync(args);
+  .RunAsync(args);