Merge pull request thingsboard#1876 from ArtemDzhereleiko/AD/bug-fix/contact-us-horizontal-resize

Fixed horizontal resize for textarea contact us form

Author: ashvayka

docs/contact-us.sass

@@ -145,6 +145,7 @@
                 //        transform: rotate(-90deg)
 
             textarea.form-control
+                resize: vertical
                 padding: 8px 16px
                 &:hover
                     padding: 7px 15px