[UI] Adjust CSS details for adding emoticons (#11435)

* Adjust CSS details for added emoticons

* fix lint

* avoid git conflict

Author: L0veSunshine

web_src/less/_repository.less

@@ -2179,6 +2179,8 @@
                 float: left;
                 padding: .5rem .5rem !important;
                 font-size: 1.5em;
+                width: 45px;
+                left: 13px;
 
                 img.emoji {
                     margin-right: 0;
@@ -2219,7 +2221,7 @@
 
         .select-reaction {
             float: left;
-            padding: .4em;
+            padding: .6em;
             line-height: 21px;
 
             &:not(.active) a {