fix(elecraft): the K3 power meter converts to real watts

The operator measured the whole table: 10 W showed 83, 12 W showed 100, 13 W
showed 8 — the bargraph is relative to a meter RANGE that flips at 12 W
(0-12 QRP, 0-120 above). A bar percentage was never watts; with the PC
setting choosing the range, it converts, and the console prints the watts
beside the bar.

frontend/wailsjs/go/models.ts

@@ -1083,6 +1083,7 @@ export namespace cat {
 	    s_meter: number;
 	    s_meter_raw: number;
 	    power_meter: number;
+	    power_w: number;
 	    swr: number;
 	    swr_raw: number;
 	    rf_power: number;
@@ -1120,6 +1121,7 @@ export namespace cat {
 	        this.s_meter = source["s_meter"];
 	        this.s_meter_raw = source["s_meter_raw"];
 	        this.power_meter = source["power_meter"];
+	        this.power_w = source["power_w"];
 	        this.swr = source["swr"];
 	        this.swr_raw = source["swr_raw"];
 	        this.rf_power = source["rf_power"];