Bug fixes (#5218)

* PLT-5319 - Fixing text alignment security modal

* PLT-5280 - Fixing add comment button in RHS mobile

* PLT-5397 - Fixing Floating timestamp on mobile

* PLT-5129 - Hiding formatting help text

* PLT-5242 - Adjusting team sidebar border on IE!!

* PLT-5226 - Placing settings toggle over header

* PLT-5222 - Placed team description tooltip on top

* PLT-5201 - Account settings overlap on mobile

* PLT-5138 - Adding bg to pending post actions

* PLT-5286 - Adjusting play button on youtube videos

* PLT-5313 - Adjusting space between emoji reactions

* PLT-5187 - Adjusting text in channel switcher

* PLT-5399 - Reverting button alignment in modal

webapp/utils/utils.jsx

@@ -526,6 +526,7 @@ export function applyTheme(theme) {
         changeCss('.app__body .modal .modal-header .modal-title, .app__body .modal .modal-header .modal-title .name, .app__body .modal .modal-header button.close', 'color:' + theme.sidebarHeaderTextColor);
         changeCss('.app__body #navbar .navbar-default .navbar-brand .heading', 'color:' + theme.sidebarHeaderTextColor);
         changeCss('.app__body #navbar .navbar-default .navbar-toggle .icon-bar', 'background:' + theme.sidebarHeaderTextColor);
+        changeCss('.app__body .post-list__timestamp > div', 'border-color:' + changeOpacity(theme.sidebarHeaderTextColor, 0.5));
         changeCss('@media(max-width: 768px){.app__body .search-bar__container', 'color:' + theme.sidebarHeaderTextColor);
     }