Mobile fixes for tooltip

app/less/app.less

@@ -2488,7 +2488,7 @@ img.img_fullsize {
       height: 34px;
       padding: 3px 4px;
       vertical-align: top;
-      margin: 4px 2px 0 0;
+      margin: 4px 0 0 0;
     }
     .composer_sticker_image {
       max-width: 28px;

app/less/mobile.less

@@ -1427,6 +1427,7 @@ a.im_message_fwd_author {
 
     &:before {
       color: #999;
+      margin-top: 1px;
     }
   }
 
@@ -1442,19 +1443,36 @@ a.im_message_fwd_author {
 
 .composer_emoji_tooltip {
   margin-left: 6px;
-  margin-top: -230px;
+  margin-top: -176px;
   z-index: 10000;
 }
+.composer_emoji_tooltip_tab {
+  line-height: 15px;
+  font-size: 11px;
+}
 
 .composer_emoji_tooltip .scroller_native_scrollable {
-  height: 140px;
+  height: 117px;
 }
 .composer_emoji_tooltip_tabs_wrap,
 .composer_emoji_tooltip_tab_emoji_content,
 .composer_emoji_tooltip_tab_stickers_content {
-  height: 182px;
+  height: 147px;
+}
+.composer_emoji_tooltip_category {
+  padding-top: 3px;
+  padding-bottom: 3px;
 }
 
+.composer_emoji_tooltip_categories {
+  .composer_emoji_tooltip_tab_stickers_content & {
+    .composer_sticker_btn {
+      padding-top: 0;
+      padding-bottom: 0;
+      margin: 0;
+    }
+  }
+}
 
 .composer_emoji_tooltip_tail {
   display: none;