M: Prevent user from creating OSS from file

rsconcept/frontend/src/pages/CreateItemPage/FormCreateItem.tsx

@@ -114,9 +114,17 @@ function FormCreateItem() {
     handleSelectLocation(initLocation);
   }, [initLocation, handleSelectLocation]);
 
+  useLayoutEffect(() => {
+    if (itemType !== LibraryItemType.RSFORM) {
+      setFile(undefined);
+      setFileName('');
+    }
+  }, [itemType]);
+
   return (
     <form className={clsx('cc-column', 'min-w-[30rem] max-w-[30rem] mx-auto', 'px-6 py-3')} onSubmit={handleSubmit}>
       <h1>
+        {itemType == LibraryItemType.RSFORM ? (
           <Overlay position='top-0 right-[0.5rem]'>
             <input
               id='schema_file'
@@ -132,6 +140,7 @@ function FormCreateItem() {
               onClick={() => inputRef.current?.click()}
             />
           </Overlay>
+        ) : null}
         Создание схемы
       </h1>