NINA Use better wording for filters (home-assistant#153050)

Author: DeerMaximum

homeassistant/components/nina/strings.json

@@ -11,7 +11,7 @@
           "_r_to_u": "City/county (R-U)",
           "_v_to_z": "City/county (V-Z)",
           "slots": "Maximum warnings per city/county",
-          "headline_filter": "Blacklist regex to filter warning headlines"
+          "headline_filter": "Headline blocklist"
         }
       }
     },
@@ -34,7 +34,7 @@
           "_v_to_z": "[%key:component::nina::config::step::user::data::_v_to_z%]",
           "slots": "[%key:component::nina::config::step::user::data::slots%]",
           "headline_filter": "[%key:component::nina::config::step::user::data::headline_filter%]",
-          "area_filter": "Whitelist regex to filter warnings based on affected areas"
+          "area_filter": "Affected area filter"
         }
       }
     },