[refactoring][workflow]: Minimize buffer empty window by replacing clear/append with set in QOTD workflow

                         Removed qotd_buffer.clear() from get_quote_of_the_day to avoid unnecessary empty state.
                         Changed m_quote_buffer.append(data) to m_quote_buffer.set(data) in QotdReceivedHandler, ensuring the buffer is atomically updated with new data.

Signed-off-by: Goran Mišković <[email protected]>

Author: schkovich

src/QotdReceivedHandler.cpp

@@ -46,7 +46,7 @@ namespace e5 {
                 // consume.
                 const std::string data(peek_buffer, available);
 
-                m_quote_buffer.append(data);
+                m_quote_buffer.set(data);
 
                 // Mark the data as consumed in the TCP buffer
                 m_io.peekConsume(available);

src/main.cpp

@@ -102,7 +102,6 @@ void get_quote_of_the_day() {
         qotd_in_progress = false;
         DEBUGV("Failed to connect to QOTD server.\n");
     }
-    qotd_buffer.clear();
 }
 
 /**