feat: Add list reminders command

bot.py

@@ -470,6 +470,26 @@ async def remindme(ctx, when: str, reminder: str):
     else:
         await ctx.response.send_message("Invalid time format. Please use something like `1d 3h` or `4hr`.",ephemeral=True)
 
+@tree.command(name="reminders", description="List reminders")
+async def reminders(ctx):
+    reminders = read_reminders()
+    if len(reminders) == 0:
+        await ctx.response.send_message("You have no reminders.",ephemeral=True)
+    else:
+        user_reminders = []
+        for reminder in reminders:
+            # Only show reminders for the user who requested them
+            if reminder['user_id'] == str(ctx.user.id):
+                user_reminders.append(reminder)
+        if len(user_reminders) == 0:
+            await ctx.response.send_message("You have no reminders.",ephemeral=True)
+        else:
+            message = "Reminders:\n"
+            for reminder in user_reminders:
+                time = datetime.datetime.strptime(reminder['time'], "%Y-%m-%d %H:%M:%S")
+                message += f"{time}: {reminder['text']}\n"
+            await ctx.response.send_message(message,ephemeral=True)
+
 @tasks.loop(seconds=10)
 async def check_reminders():
     now = datetime.datetime.now()