[feat][experimental] Add auto-translate input message functionality and language support in chat panel and settings

This commit adds new entries in the language files and UI support for auto-translate messages.

The new feature uses a textarea input field to translate messages as they are typed, and the translated text is shown in a new field. Also, the language settings now provide an option to enable/disable auto message translation.

The code changes include adding a new function to update the input sizes for both input fields and some minor code refactoring to support new functionality.

src/lib/Setting/Pages/LanguageSettings.svelte

@@ -3,6 +3,7 @@
 import { changeLanguage, language } from "src/lang";
     import { DataBase } from "src/ts/storage/database";
     import { sleep } from "src/ts/util";
+    import Help from "src/lib/Others/Help.svelte";
     let langChanged = false
 </script>
 <h2 class="mb-2 text-2xl font-bold mt-2">{language.language}</h2>
@@ -39,4 +40,11 @@ import { changeLanguage, language } from "src/lang";
         <Check bind:check={$DataBase.autoTranslate} />
         <span>{language.autoTranslation}</span>
     </div>
+    {#if $DataBase.useExperimental}
+        <div class="flex items-center mt-2">
+            <Check bind:check={$DataBase.useAutoTranslateInput} />
+            <span>{language.autoTranslateInput}</span>
+            <Help key="experimental" />
+        </div>
+    {/if}
 {/if}