refactor: replace component with common component

browser/main/SideNav/StorageItem.styl

@@ -80,63 +80,6 @@
   &:active
     color $ui-active-color
 
-.folderList-item
-  display flex
-  width 100%
-  height 26px
-  background-color transparent
-  color $ui-inactive-text-color
-  padding 0
-  margin-bottom 5px
-  text-align left
-  border none
-  overflow ellipsis
-  font-size 14px
-  &:first-child
-    margin-top 0
-  &:hover
-    background-color $ui-button--hover-backgroundColor
-  &:active
-    color $ui-button--active-color
-    background-color $ui-button--active-backgroundColor
-
-.folderList-item--active
-  @extend .folderList-item
-  color $ui-button--active-color
-  background-color $ui-button--active-backgroundColor
-  &:hover
-    color $ui-button--active-color
-    background-color $ui-button--active-backgroundColor
-
-.folderList-item-name
-  display block
-  flex 1
-  padding 0 30px
-  height 26px
-  line-height 26px
-  border-width 0 0 0 3px
-  border-style solid
-  border-color transparent
-
-.folderList-item-noteCount
-  float right
-  line-height 26px
-  padding-right 5px
-  font-size 12px
-
-.folderList-item-tooltip
-  tooltip()
-  position fixed
-  padding 0 10px
-  left 44px
-  z-index 10
-  pointer-events none
-  opacity 0
-  border-top-right-radius 2px
-  border-bottom-right-radius 2px
-  height 26px
-  line-height 26px
-
 .root--folded
   @extend .root
   .header
@@ -163,11 +106,7 @@
   .header-info--folded-tooltip-path
     font-size 10px
     margin 0 5px
-  .folderList-item:hover, .folderList-item--active:hover
-    .folderList-item-tooltip
-      opacity 1
-  .folderList-item-name
-    padding-left 14px
+
 body[data-theme="dark"]
   .header-toggleButton
   .header-addFolderButton