Ui improvements (#6089)

* PLT-6084 - Fixing emoji reaction overflow

* PLT-6158 - Fixing pinned badge alignment in RHS

* PLT-6306 - Post alignment in compact view

* PLT-6266 - Adjusting spacing for files (compact)

* PLT-6245 - Adjusting spacing in emoji screen modal

* PLT-6237 - Adjusting filter in system console

* PLT-6247 - Adjusting spacing on code block tag

* PLT-6302 - Margins not equal for paragraphs in post

webapp/sass/layout/_post.scss

@@ -836,7 +836,7 @@
         }
 
         .post__img {
-            padding-top: 3px;
+            padding-top: 1px;
             width: 16px;
 
             img {
@@ -911,7 +911,7 @@
                 left: 36px;
                 margin-left: 7px;
                 position: absolute;
-                top: 8px;
+                top: 6px;
             }
 
             .post__img {
@@ -1034,6 +1034,7 @@
             right: 0;
             top: -4px;
             white-space: nowrap;
+            z-index: 6;
         }
 
         .col__remove {
@@ -1156,7 +1157,6 @@
         word-wrap: break-word;
 
         div {
-            margin-bottom: .4em;
         }
 
         p + p {