[Tracking] C#/Gateway Offload: resolve TODOs

[TheArcaneBrony]

Generated at commit 57827bc9:

• extra/admin-api/Spacebar.GatewayOffload/Controllers/ChannelStatusController.cs:52: status = statusOptions[new Random().Next(statusOptions.Length)], // TODO: We don't currently store channel statuses, so make some stuff up
• extra/admin-api/Spacebar.GatewayOffload/Controllers/ChannelStatusController.cs:53: voiceStartTime = DateTime.Now.Subtract(TimeSpan.FromMinutes(new Random().Next(1, 120))), // TODO: We also don't store voice start times, so make some stuff up
• extra/admin-api/Spacebar.GatewayOffload/Controllers/Op8Controller.cs:45: // TODO: figure out how to abstract this to a function without EFCore complaining about not being translatable...
• ``extra/admin-api/Spacebar.GatewayOffload/Controllers/Op8Controller.cs:61: // see TODO on IsOnline - somehow need to replicate `IsOnline(s)```
• extra/admin-api/Spacebar.GatewayOffload/Controllers/Op14Controller.cs:17: // TODO: actually return something?
• extra/admin-api/Spacebar.GatewayOffload/Controllers/Op14Controller.cs:49: return null; // TODO
• extra/admin-api/Spacebar.GatewayOffload/Controllers/IdentifyController.cs:45: // TODO: type? also, implement this in gateway lol
• extra/admin-api/Spacebar.GatewayOffload/Controllers/Op12Controller.cs:45: // TODO: figure out how to abstract this to a function without EFCore complaining about not being translatable...
• ``extra/admin-api/Spacebar.GatewayOffload/Controllers/Op12Controller.cs:61: // see TODO on IsOnline - somehow need to replicate `IsOnline(s)```