Update: Style improvements, Italian localization fix and small improvements

- Added 'disabled' class to the input element when tightBorder is false.
- Applied unavailable cursor style and disabled gray background for elements with the 'disabled' class.
- Fixed Italian localization: Changed 'Lingue' to 'Language' to maintain universal terminology and improve user experience.
- Added improvement to resizing the border so that it was at 90% of the screen size
- Added new color for disabled options
- Added title for explain the usage of tightBorder and adjustedContainer
- Added the feature to remove a chat item using the middle click (middle mouse button)
- Properly utilized the MouseEvent event in the ChatItem component

app/locales/es.ts

@@ -85,6 +85,11 @@ const es: LocaleType = {
     SendKey: "Tecla de envío",
     Theme: "Tema",
     TightBorder: "Borde ajustado",
+    TightBorderExplanation:
+      "Esta opción ajusta el borde de la ventana para que ocupe el 100% del tamaño de la pantalla",
+    AdjustedContainer: "Contenedor ajustado",
+    AdjustedContainerExplanation:
+      "Esta opción ajusta la ventana para que ocupe el 90% del tamaño de la pantalla, dejando márgenes alrededor",
     SendPreviewBubble: "Enviar burbuja de vista previa",
     Prompt: {
       Disable: {