Fix typo in filament_sbs_template.json (#11837)

Lowered hot_plate_temp from 5705 to a reasonable 70 degrees. 

(should be 60-90 degrees according to sources, made it the same as the first layer bed temp)

resources/profiles_template/Template/filament/filament_sbs_template.json

@@ -111,7 +111,7 @@
     "0"
   ],
   "hot_plate_temp": [
-    "5705"
+    "70"
   ],
   "hot_plate_temp_initial_layer": [
     "70"
@@ -165,4 +165,4 @@
   "filament_end_gcode": [
     "; filament end gcode \nM106 P3 S0\n"
   ]
-}
+}