Make the emoji template configurable

config.py

@@ -219,5 +219,11 @@ ME = {
     "publicKey": KEY.to_dict(),
 }
 
-# TODO(tsileo): read the config from the YAML if set
 EMOJIS = "😺 😸 😹 😻 😼 😽 🙀 😿 😾"
+if conf.get("emojis"):
+    EMOJIS = conf["emojis"]
+
+# Emoji template for the FE
+EMOJI_TPL = '<img src="https://cdn.jsdelivr.net/npm/twemoji@12.0.0/2/svg/{filename}.svg" alt="{raw}" class="emoji">'
+if conf.get("emoji_tpl"):
+    EMOJI_TPL = conf["emoji_tpl"]