improve spacing

apps/app/src/components/PageHeader/PagePathHeader.module.scss

@@ -3,9 +3,9 @@
   input {
     min-width: 20px;
     min-height: unset;
-    padding-top: 0;
-    padding-bottom: 0;
-    line-height: 1em;
+    padding-top: 2px;
+    padding-bottom: 2px;
+    line-height: 1.2em;
   }
 
   .page-path-header-buttons {

apps/app/src/components/PageHeader/PagePathHeader.tsx

@@ -1,7 +1,7 @@
 import {
-  useState, useEffect, useCallback, memo, useMemo,
+  useState, useCallback, memo,
 } from 'react';
-import type { CSSProperties, FC } from 'react';
+import type { FC } from 'react';
 
 import type { IPagePopulatedToShowRevision } from '@growi/core';
 import { DevidedPagePath } from '@growi/core/dist/models';