Add trade command (#172)

# Description

Please include a summary of the change and which issue is fixed. Please also include relevant motivation and context. List any dependencies that are required for this change.

- Add trade command to the bot, as well as its corresponding button events
- Only the target user can accept
- Both the target user and initiating user can decline, no one else can
- Auto expires after 15 minutes

#165

## Type of change

Please delete options that are not relevant.

- [x] New feature (non-breaking change which adds functionality)

# How Has This Been Tested?

Please describe the tests that you ran to verify the changes. Provide instructions so we can reproduce. Please also list any relevant details to your test configuration.

# Checklist

- [ ] My code follows the style guidelines of this project
- [ ] I have performed a self-review of my own code
- [ ] I have commented my code, particularly in hard-to-understand areas
- [ ] I have made corresponding changes to the documentation
- [ ] My changes generate no new warnings
- [ ] I have added tests that provde my fix is effective or that my feature works
- [ ] New and existing unit tests pass locally with my changes
- [ ] Any dependent changes have been merged and published in downstream modules

Reviewed-on: https://gitea.vylpes.xyz/External/card-drop/pulls/172
Reviewed-by: VylpesTester <tester@vylpes.com>
Co-authored-by: Ethan Lane <ethan@vylpes.com>
Co-committed-by: Ethan Lane <ethan@vylpes.com>

src/registry.ts

@@ -8,6 +8,7 @@ import Gdrivesync from "./commands/gdrivesync";
 import Give from "./commands/give";
 import Inventory from "./commands/inventory";
 import Resync from "./commands/resync";
+import Trade from "./commands/trade";
 import View from "./commands/view";
 
 // Test Command Imports
@@ -18,6 +19,7 @@ import Droprarity from "./commands/stage/droprarity";
 import Claim from "./buttonEvents/Claim";
 import InventoryButtonEvent from "./buttonEvents/Inventory";
 import Reroll from "./buttonEvents/Reroll";
+import TradeButtonEvent from "./buttonEvents/Trade";
 
 export default class Registry {
     public static RegisterCommands() {
@@ -28,6 +30,7 @@ export default class Registry {
         CoreClient.RegisterCommand("give", new Give());
         CoreClient.RegisterCommand("inventory", new Inventory());
         CoreClient.RegisterCommand("resync", new Resync());
+        CoreClient.RegisterCommand("trade", new Trade());
         CoreClient.RegisterCommand("view", new View());
 
         // Test Commands
@@ -41,7 +44,8 @@ export default class Registry {
 
     public static RegisterButtonEvents() {
         CoreClient.RegisterButtonEvent("claim", new Claim());
-        CoreClient.RegisterButtonEvent("inventory", new InventoryButtonEvent);
+        CoreClient.RegisterButtonEvent("inventory", new InventoryButtonEvent());
         CoreClient.RegisterButtonEvent("reroll", new Reroll());
+        CoreClient.RegisterButtonEvent("trade", new TradeButtonEvent());
     }
 }