[opt] search placeholder & toc style

layout/_partial/sidebar/search.ejs

@@ -2,6 +2,11 @@
 if (item.filter == null) {
   item.filter = 'auto'
 }
+if (item.placeholder == null && item.filter == 'auto') {
+  if (theme.wiki.tree[page.wiki]?.name) {
+    item.placeholder = __('search.search_in', theme.wiki.tree[page.wiki]?.name) 
+  }
+}
 function layoutDiv() {
   var el = ''
   el += `<div class="search-wrapper" id="search-wrapper">`

source/css/_layout/widgets/toc_wiki.styl

@@ -55,7 +55,8 @@
     border-bottom-left-radius: $border-card
     border-bottom-right-radius: $border-card
     a.toc-link:before
-      left: -2px
+      left: -7px
       width: 4px
+      background: var(--text-p2)
     a.toc-link:hover
       background: var(--alpha100)