i18n: complete DeviceVerification + PasswordStage dialog translation

Review flagged that wrapping only the buttons left the dialog body copy
hardcoded (mixed-language dialogs once a non-en locale ships). Wrap the
remaining body/waiting strings ("Please accept…", "Confirm the emoji…",
"Do not Match", "Your device is verified.", etc.) and the PasswordStage
prompt, adding hooks to the sub-components that lacked one. Keys added to
en.json; all t() keys verified to resolve.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

public/locales/en.json

@@ -25,7 +25,17 @@
       "close": "Close",
       "accept": "Accept",
       "they_match": "They Match",
-      "okay": "Okay"
+      "okay": "Okay",
+      "do_not_match": "Do not Match",
+      "please_accept": "Please accept the request from other device.",
+      "waiting_accept": "Waiting for request to be accepted...",
+      "click_accept": "Click accept to start the verification process.",
+      "request_accepted": "Verification request has been accepted.",
+      "waiting_response": "Waiting for the response from other device...",
+      "starting_emoji": "Starting verification using emoji comparison...",
+      "confirm_emoji": "Confirm the emoji below are displayed on both devices, in the same order:",
+      "device_verified": "Your device is verified.",
+      "verification_canceled": "Verification has been canceled."
     },
     "UrlPreview": {
       "join_server": "Join Server"
@@ -41,7 +51,8 @@
     "PasswordStage": {
       "account_password": "Account Password",
       "password": "Password",
-      "invalid_password": "Invalid Password!"
+      "invalid_password": "Invalid Password!",
+      "authenticate_prompt": "To perform this action you need to authenticate yourself by entering you account password."
     }
   }
 }