Support for embeds in .qsearch output

- Support for embeds in .qsearch output results
- Search can be case insensitive (changes made 011b951a29)
- Output shows keyword in lowercase as it's easier to read (line 104)
- Minor syntax cleanups

src/NadekoBot/Modules/Utility/Commands/QuoteCommands.cs

@@ -90,7 +90,18 @@ namespace NadekoBot.Modules.Utility
                 if (keywordquote == null)
                     return;
                 
-                await Context.Channel.SendMessageAsync("💬 " + keyword + ":  " + keywordquote.Text.SanitizeMentions());
+                CREmbed crembed;
+                if (CREmbed.TryParse(keywordquote.Text, out crembed))
+                {
+                    try { await Context.Channel.EmbedAsync(crembed.ToEmbed(), crembed.PlainText ?? "").ConfigureAwait(false); }
+                    catch (Exception ex)
+                    {
+                        _log.Warn("Sending CREmbed failed");
+                        _log.Warn(ex);
+                    }
+                    return;
+                }
+                await Context.Channel.SendMessageAsync("💬 " + keyword.toLowerInvariant(); + ":  " + keywordquote.Text.SanitizeMentions());
             }
 
             [NadekoCommand, Usage, Description, Aliases]