- Refinement of the chat client to have better visible clues for user vs chatbot messages

- Introduction of interview_phase and normal phase in TRAICIE_SELECTION_SPECIALIST to make interaction with bot more human.
- More and random humanised messages to TRAICIE_SELECTION_SPECIALIST

eveai_chat_client/static/assets/css/form.css

@@ -124,3 +124,21 @@
 .text-value {
     white-space: pre-wrap;
 }
+
+/* Loading spinner for send button */
+.form-actions .loading-spinner {
+    display: inline-block;
+    animation: spin 1s linear infinite;
+}
+
+@keyframes spin {
+    0% { transform: rotate(0deg); }
+    100% { transform: rotate(360deg); }
+}
+
+/* Flexbox layout for single send button */
+.form-actions.with-send-button {
+    display: flex;
+    justify-content: flex-end;
+    align-items: center;
+}