Ui improvements (#5755)

* PLT-5816 - Flagged posts tooltip fix

* PLT-5766 - Link previews appearing outside the box

* PLT-5795 - Fixing alignment user list in channel

* PLT-5818 - Reset password error not aligned

* PLT-5837 - Adjusting image preview max height

* PLT-5778 - Updating word break for paragraphs

* PLT-5848 - Updating label for file error

* PLT-5846 - Markdown tables extra border on mobile

* PLT-5662 - Pinned post UI improvement

* Fixing eslint error

* Updating tooltip eslint issue

* PLT-5832 - Removing error styling on labels

webapp/sass/responsive/_mobile.scss

@@ -1,6 +1,10 @@
 @charset 'UTF-8';
 
 @media screen and (max-width: 768px) {
+    .table-responsive {
+        border: none;
+    }
+
     .multi-select__container {
         .btn {
             display: block;
@@ -1336,7 +1340,7 @@
 
                 a {
                     border-bottom: 1px solid;
-                    line-height: 50px;
+                    line-height: 45px;
                     position: relative;
                     text-align: center;
                 }