change wording from "identity" to "identifier" in many places

src/views/ImportAccountView.vue

@@ -10,12 +10,12 @@
         >
           <fa icon="chevron-left"></fa>
         </button>
-        Import Existing Identity
+        Import Existing Identifier
       </h1>
     </div>
     <!-- Import Account Form -->
     <p class="text-center text-xl mb-4 font-light">
-      Enter your seed phrase below to import your identity on this device.
+      Enter your seed phrase below to import your identifier on this device.
     </p>
     <!-- id used by puppeteer test script -->
     <input
@@ -148,7 +148,7 @@ export default class ImportAccountView extends Vue {
             group: "alert",
             type: "danger",
             title: "Error",
-            text: "Got an error creating that identity.",
+            text: "Got an error creating that identifier.",
           },
           -1,
         );