Add prompt() plugin API (#121)

src-web/components/EnvironmentEditDialog.tsx

@@ -274,8 +274,8 @@ function SidebarButton({
                       Enter a new name for <InlineCode>{environment.name}</InlineCode>
                     </>
                   ),
-                  name: 'name',
                   label: 'Name',
+                  confirmText: 'Save',
                   placeholder: 'New Name',
                   defaultValue: environment.name,
                 });