Reimplement compose and add tiling windows

core/templates/partials/bulma-send-composer.html

@@ -0,0 +1,24 @@
+<div class="box is-shadowless gia-send-composer{% if composer_class %} {{ composer_class }}{% endif %}">
+  <div class="field has-addons gia-send-composer-row">
+    <div class="control is-expanded gia-send-composer-input-wrap">
+      <textarea
+        id="{{ textarea_id }}"
+        class="textarea gia-send-composer-input{% if textarea_class %} {{ textarea_class }}{% endif %}"
+        name="{{ textarea_name|default:'text' }}"
+        rows="{{ textarea_rows|default:'1' }}"
+        {% if textarea_placeholder %}placeholder="{{ textarea_placeholder }}"{% endif %}></textarea>
+    </div>
+    <div class="control gia-send-composer-action">
+      <button
+        class="button gia-send-composer-button{% if button_class %} {{ button_class }}{% endif %}"
+        type="{{ button_type|default:'submit' }}"
+        {% if button_disabled %}disabled{% endif %}
+        {% if button_title %}title="{{ button_title }}"{% endif %}>
+        {% if button_icon_class %}
+          <span class="icon is-small"><i class="{{ button_icon_class }}"></i></span>
+        {% endif %}
+        <span>{{ button_label|default:"Send" }}</span>
+      </button>
+    </div>
+  </div>
+</div>