feat(explorer): improve accessibility and consistency (+ bug fix) (#488)

Ben Schlegel

2023-09-20 b029eeadabe0877df6ec11443c68743f1494bc40

 quartz/components/scripts/explorer.inline.ts

@@ -113,9 +113,11 @@
      ) as HTMLElement

      // Get corresponding content <ul> tag and set state
      const folderUL = folderLi.parentElement?.nextElementSibling
      if (folderUL) {
        setFolderState(folderUL as HTMLElement, folderUl.collapsed)
      if (folderLi) {
        const folderUL = folderLi.parentElement?.nextElementSibling
        if (folderUL) {
          setFolderState(folderUL as HTMLElement, folderUl.collapsed)
        }
      }
    })
  } else {