UI: added decibel-milliwatts unit to dictionary

ui-ngx/src/assets/locale/locale.constant-en_US.json

@@ -4388,6 +4388,7 @@
         "volt": "Volt",
         "kilovolts": "Kilovolts",
         "dbmV": "dBmV",
+        "dbm": "dBm",
         "volt-meter": "Volt-Meter",
         "kilovolt-meter": "Kilovolt-Meter",
         "megavolt-meter": "Megavolt-Meter",

ui-ngx/src/assets/metadata/units.json

@@ -938,6 +938,11 @@
   "symbol": "dBmV",
   "tags": ["decibels millivolt","voltage level","signal","dBmV"]
 },
+{
+  "name": "unit.dbm",
+  "symbol": "dBm",
+  "tags": ["decibel milliwatts","output power","signal","dBm"]
+},
 {
   "name": "unit.volt-meter",
   "symbol": "V·m",