Refactoring translator to use "_" instead of "translator._".

This is shorter and pollutes less the code.

front/src/Components/WarningContainer/WarningContainer.svelte

@@ -2,7 +2,7 @@
     import { fly } from "svelte/transition";
     import { userIsAdminStore, limitMapStore } from "../../Stores/GameStore";
     import { ADMIN_URL } from "../../Enum/EnvironmentVariable";
-    import { translator } from "../../Translator/Translator";
+    import { _ } from "../../Translator/Translator";
 
     const upgradeLink = ADMIN_URL + "/pricing";
     const registerLink = ADMIN_URL + "/second-step-register";
@@ -10,17 +10,17 @@
 
 <main class="warningMain" transition:fly={{ y: -200, duration: 500 }}>
     {#if $userIsAdminStore}
-        <h2>{translator._("warning.title")}</h2>
+        <h2>{_("warning.title")}</h2>
         <p>
-            {translator._("warning.content", { upgradeLink })}
+            {_("warning.content", { upgradeLink })}
         </p>
     {:else if $limitMapStore}
         <p>
             This map is available for 2 days. You can register your domain <a href={registerLink}>here</a>!
         </p>
     {:else}
-        <h2>{translator._("warning.title")}</h2>
-        <p>{translator._("warning.limit")}</p>
+        <h2>{_("warning.title")}</h2>
+        <p>{_("warning.limit")}</p>
     {/if}
 </main>