Stopping sending literal errors

Errors now must be of "Error" type.
Rule added in eslint.

front/src/Components/Menu/AudioGlobalMessage.svelte

@@ -26,7 +26,7 @@
             const selectedFile = inputAudio.files ? inputAudio.files[0] : null;
             if (!selectedFile) {
                 errorFile = true;
-                throw "no file selected";
+                throw new Error("no file selected");
             }
 
             const fd = new FormData();

front/src/Components/Menu/Menu.svelte

@@ -76,7 +76,7 @@
                     break;
                 }
             }
-        } else throw "There is no menu called " + menu;
+        } else throw new Error("There is no menu called " + menu);
     }
 
     function closeMenu() {