Update sample projects & samples in docs (#2823)

* update them all

* more docs

* moar docs

samples/ShardedClient/Modules/PublicModule.cs

@@ -1,17 +1,16 @@
 using Discord.Commands;
 using System.Threading.Tasks;
 
-namespace ShardedClient.Modules
+namespace ShardedClient.Modules;
+
+// Remember to make your module reference the ShardedCommandContext
+public class PublicModule : ModuleBase<ShardedCommandContext>
 {
-    // Remember to make your module reference the ShardedCommandContext
-    public class PublicModule : ModuleBase<ShardedCommandContext>
+    [Command("info")]
+    public async Task InfoAsync()
     {
-        [Command("info")]
-        public async Task InfoAsync()
-        {
-            var msg = $@"Hi {Context.User}! There are currently {Context.Client.Shards.Count} shards!
+        var msg = $@"Hi {Context.User}! There are currently {Context.Client.Shards.Count} shards!
                 This guild is being served by shard number {Context.Client.GetShardFor(Context.Guild).ShardId}";
-            await ReplyAsync(msg);
-        }
+        await ReplyAsync(msg);
     }
 }