fix known disappearing prompts

frontend/src/components/prompts/Upload.vue

@@ -48,8 +48,6 @@ const layoutStore = useLayoutStore();
 
 // TODO: this is a copy of the same function in FileListing.vue
 const uploadInput = (event: Event) => {
-  layoutStore.closeHovers();
-
   let files = (event.currentTarget as HTMLInputElement)?.files;
   if (files === null) return;
 

frontend/src/stores/layout.ts

@@ -64,7 +64,7 @@ export const useLayoutStore = defineStore("layout", {
       });
     },
     closeHovers() {
-      this.prompts.pop();
+      this.prompts.shift();
     },
     // easily reset state using `$reset`
     clearLayout() {