fix compile error and warnings

src/hm/Communication.h

@@ -210,9 +210,9 @@ class Communication : public CommQueue<> {
                                 if(q->iv->miMultiParts < 6) {
                                     nextState = States::WAIT;
                                 } else {
-                                    if((q->cmd == 0x39)       && (q->iv->type == INV_TYPE_4CH) ||
+                                    if(((q->cmd == 0x39) && (q->iv->type == INV_TYPE_4CH))
-                                       (q->cmd == MI_REQ_CH2) && (q->iv->type == INV_TYPE_2CH) ||
+                                        || ((q->cmd == MI_REQ_CH2) && (q->iv->type == INV_TYPE_2CH))
-                                       (q->cmd == MI_REQ_CH1) && (q->iv->type == INV_TYPE_1CH)) {
+                                        || ((q->cmd == MI_REQ_CH1) && (q->iv->type == INV_TYPE_1CH))) {
                                         miComplete(q->iv);
                                         //closeRequest(q->iv, q->iv->miMultiParts > 5);
                                     }

src/web/RestApi.h

@@ -556,7 +556,7 @@ class RestApi {
             obj[F("en")]          = (bool) mConfig->nrf.enabled;
             obj[F("isconnected")] = mRadioNrf->isChipConnected();
             obj[F("dataRate")]    = mRadioNrf->getDataRate();
-            obj[F("sn")]          = String(mRadioCmt->getDTUSn(), HEX);
+            obj[F("sn")]          = String(mRadioNrf->getDTUSn(), HEX);
         }
 
         void getSerial(JsonObject obj) {

src/web/html/serial.html

@@ -17,6 +17,7 @@
                     <div class="col-6 col-sm-4 a-r">
                         <input type="button" value="clear" class="btn" id="clear"/>
                         <input type="button" value="autoscroll" class="btn" id="scroll"/>
+                        <!--<input type="button" value="copy" class="btn" id="copy"/>-->
                     </div>
                 </div>
             </div>
@@ -63,6 +64,12 @@
                 mAutoScroll = !mAutoScroll;
                 this.value = (mAutoScroll) ? "autoscroll" : "manual scroll";
             });
+            /*document.getElementById("copy").addEventListener("click", function() {
+                con.select();
+                con.setSelectionRange(0, 9999999);
+                navigator.clipboard.writeText(con.value);
+                alert("Copied to clipboard");
+            });*/
 
             if (!!window.EventSource) {
                 var source = new EventSource('/events');