Improve action descriptions of ness_alarm integration (#138921)

- for the panic action change the description to "Triggers a panic _alarm_" as we don't want to trigger a panic ;-)
- for the aux action replace "Trigger …" with "Changes the state of an aux output" as it can turn this off as well
- clarify the description of the state field, dropping "true" for a UI-friendly wording

homeassistant/components/ness_alarm/strings.json

@@ -2,7 +2,7 @@
   "services": {
     "aux": {
       "name": "Aux",
-      "description": "Trigger an aux output.",
+      "description": "Changes the state of an aux output.",
       "fields": {
         "output_id": {
           "name": "Output ID",
@@ -10,17 +10,17 @@
         },
         "state": {
           "name": "State",
-          "description": "The On/Off State. If P14xE 8E is enabled then a value of true will pulse output x for the time specified in P14(x+4)E."
+          "description": "The on/off state of the output. If P14xE 8E is enabled then turning on will pulse the output for the time specified in P14(x+4)E."
         }
       }
     },
     "panic": {
       "name": "Panic",
-      "description": "Triggers a panic.",
+      "description": "Triggers a panic alarm.",
       "fields": {
         "code": {
           "name": "Code",
-          "description": "The user code to use to trigger the panic."
+          "description": "The user code to use to trigger the panic alarm."
         }
       }
     }