PLT-3506 Added flagged posts functionality (#3679)

* Added flagged posts functionality

* UI Improvements to flags (#3697)

* Added flag functionality for mobile

* Updating flagged text (#3699)

* Add back button to RHS thread when coming from flagged posts

* Updating position of flags (#3708)

* Plt 3506 - Reverting flag position (#3724)

* Revert "Updating position of flags (#3708)"

This reverts commit aaa05632c5d9eda35a048300a5bd7e99584c5b58.

* Fixing the icon in search

* Help text and white space improvements (#3730)

* Updatng help text and some white spacing.

* Updating help text

webapp/sass/layout/_headers.scss

@@ -43,6 +43,7 @@
         }
 
         &:last-child {
+            padding-right: 8px;
             width: 8.9%;
         }
     }
@@ -375,8 +376,17 @@
         font-size: 22px;
         height: 30px;
         line-height: 26px;
-        margin-right: 9px;
-        width: 24px;
+        margin-right: 3px;
+        text-align: center;
+        width: 30px;
+
+        th {
+            &:last-child {
+                div {
+                    margin-right: 10px;
+                }
+            }
+        }
 
         .channel__wrap.move--left & {
             position: absolute;
@@ -384,6 +394,15 @@
             top: 14px;
         }
 
+        .icon__flag {
+            svg {
+                height: 18px;
+                position: relative;
+                top: 2px;
+                width: 19px;
+            }
+        }
+
         > a {
             @include opacity(.6);
             @include single-transition(all, .1s, ease-in);