chore: update interpolation syntax for i18n files (#10198)

There were two warnings showing up on new teams page

1. `errorMessage` prop was getting invalid value, this was because were
short circuting the error message using `&&`, fixed it by using ternary
operator
2. `vue-i18n` has deprecated [rails
syntax](https://vue-i18n.intlify.dev/guide/essentials/syntax#rails-i18n-format),
fixed that warning by removing `%` before `{}` for interpolation

> Note: the `vue-i18n` deprecation needs to be handled, but we can do it
later

app/javascript/dashboard/i18n/locale/fi/generalSettings.json

@@ -48,7 +48,7 @@
         "CUSTOM_EMAIL_DOMAIN_ENABLED": "Voit nyt vastaanottaa sähköposteja mukautetulla verkkotunnuksellasi."
       }
     },
-    "UPDATE_CHATWOOT": "An update %{latestChatwootVersion} for Chatwoot is available. Please update your instance.",
+    "UPDATE_CHATWOOT": "An update {latestChatwootVersion} for Chatwoot is available. Please update your instance.",
     "LEARN_MORE": "Learn more",
     "PAYMENT_PENDING": "Your payment is pending. Please update your payment information to continue using Chatwoot",
     "LIMITS_UPGRADE": "Your account has exceeded the usage limits, please upgrade your plan to continue using Chatwoot",