fix: Fix gettext usage warning (#10693)

apps/block_scout_web/lib/block_scout_web.ex

@@ -25,7 +25,7 @@ defmodule BlockScoutWeb do
       import BlockScoutWeb.Controller
       import BlockScoutWeb.Router.Helpers
       import BlockScoutWeb.Routers.WebRouter.Helpers, except: [static_path: 2]
-      import BlockScoutWeb.Gettext
+      use Gettext, backend: BlockScoutWeb.Gettext
       import BlockScoutWeb.ErrorHelper
       import BlockScoutWeb.Routers.AccountRouter.Helpers, except: [static_path: 2]
       import Plug.Conn
@@ -49,7 +49,6 @@ defmodule BlockScoutWeb do
       import BlockScoutWeb.{
         CurrencyHelper,
         ErrorHelper,
-        Gettext,
         Router.Helpers,
         TabHelper,
         Tokens.Helper,
@@ -57,6 +56,8 @@ defmodule BlockScoutWeb do
         WeiHelper
       }
 
+      use Gettext, backend: BlockScoutWeb.Gettext
+
       import BlockScoutWeb.Routers.AccountRouter.Helpers, except: [static_path: 2]
 
       import Explorer.Chain.CurrencyHelper, only: [divide_decimals: 2]
@@ -78,7 +79,7 @@ defmodule BlockScoutWeb do
     quote do
       use Phoenix.Channel
 
-      import BlockScoutWeb.Gettext
+      use Gettext, backend: BlockScoutWeb.Gettext
     end
   end
 

apps/block_scout_web/lib/block_scout_web/gettext.ex

@@ -20,5 +20,5 @@ defmodule BlockScoutWeb.Gettext do
 
   See the [Gettext Docs](https://hexdocs.pm/gettext) for detailed usage.
   """
-  use Gettext, otp_app: :block_scout_web
+  use Gettext.Backend, otp_app: :block_scout_web
 end

apps/block_scout_web/lib/block_scout_web/views/block_transaction_view.ex

@@ -1,7 +1,7 @@
 defmodule BlockScoutWeb.BlockTransactionView do
   use BlockScoutWeb, :view
 
-  import BlockScoutWeb.Gettext, only: [gettext: 1]
+  use Gettext, backend: BlockScoutWeb.Gettext
 
   def block_not_found_message({:ok, true}) do
     gettext("Easy Cowboy! This block does not exist yet!")

apps/block_scout_web/lib/block_scout_web/views/internal_transaction_view.ex

@@ -3,7 +3,7 @@ defmodule BlockScoutWeb.InternalTransactionView do
 
   alias Explorer.Chain.InternalTransaction
 
-  import BlockScoutWeb.Gettext
+  use Gettext, backend: BlockScoutWeb.Gettext
 
   @doc """
   Returns the formatted string for the type of the internal transaction.

apps/block_scout_web/lib/block_scout_web/views/transaction_view.ex

@@ -11,7 +11,7 @@ defmodule BlockScoutWeb.TransactionView do
   alias Explorer.ExchangeRates.Token
   alias Timex.Duration
 
-  import BlockScoutWeb.Gettext
+  use Gettext, backend: BlockScoutWeb.Gettext
   import BlockScoutWeb.AddressView, only: [from_address_hash: 1, short_token_id: 2, tag_name_to_label: 1]
   import BlockScoutWeb.Tokens.Helper
 

apps/block_scout_web/lib/block_scout_web/views/wei_helper.ex

@@ -3,7 +3,7 @@ defmodule BlockScoutWeb.WeiHelper do
   Helper functions for interacting with `t:Explorer.Chain.Wei.t/0` values.
   """
 
-  import BlockScoutWeb.Gettext
+  use Gettext, backend: BlockScoutWeb.Gettext
 
   alias BlockScoutWeb.CldrHelper
   alias Explorer.Chain.Wei