Make header mobile responsive (#30)

TNL-7072

src/courseware/course/CourseHeader.jsx

@@ -4,6 +4,9 @@ import { Dropdown } from '@edx/paragon';
 import { getConfig } from '@edx/frontend-platform';
 import { AppContext } from '@edx/frontend-platform/react';
 
+import { FontAwesomeIcon } from '@fortawesome/react-fontawesome';
+import { faUserCircle } from '@fortawesome/free-solid-svg-icons';
+
 import logo from './logo.svg';
 
 function LinkedLogo({
@@ -31,7 +34,7 @@ export default function CourseHeader({
   const { authenticatedUser } = useContext(AppContext);
 
   return (
-    <header>
+    <header className="course-header">
       <div className="container-fluid py-2 d-flex align-items-center ">
         <LinkedLogo
           className="logo"
@@ -39,14 +42,17 @@ export default function CourseHeader({
           src={logo}
           alt={getConfig().SITE_NAME}
         />
-        <div className="flex-grow-1" style={{ lineHeight: 1 }}>
+        <div className="flex-grow-1 course-title-lockup" style={{ lineHeight: 1 }}>
           <span className="d-block small m-0">{courseOrg} {courseNumber}</span>
-          <span className="d-block m-0 font-weight-bold">{courseName}</span>
+          <span className="d-block m-0 font-weight-bold course-name">{courseName}</span>
         </div>
 
-        <Dropdown>
+        <Dropdown className="user-dropdown">
           <Dropdown.Button>
-            {authenticatedUser.username}
+            <FontAwesomeIcon icon={faUserCircle} className="d-md-none" size="lg" />
+            <span className="d-none d-mb-block">
+              {authenticatedUser.username}
+            </span>
           </Dropdown.Button>
           <Dropdown.Menu className="dropdown-menu-right">
             <Dropdown.Item href={`${getConfig().LMS_BASE_URL}/dashboard`}>Dashboard</Dropdown.Item>

src/index.scss

@@ -16,6 +16,14 @@ $primary: #1176B2;
   }
 }
 
+// TODO: Fix .container-fluid for mobile in paragon
+.container-fluid {
+  @media (max-width: -1 + map-get($grid-breakpoints, 'sm')) {
+    padding-left: $grid-gutter-width/2;
+    padding-right: $grid-gutter-width/2;
+  }
+}
+
 #root {
   display: flex;
   flex-direction: column;
@@ -45,6 +53,23 @@ $primary: #1176B2;
   }
 }
 
+.course-header {
+  min-width: 0;
+  .course-title-lockup {
+    min-width: 0;
+    span {
+      white-space: nowrap;
+      overflow: hidden;
+      text-overflow: ellipsis;
+    }
+  }
+  .user-dropdown {
+    .btn {
+      height: 3rem;
+      padding: 0 .5rem;
+    }
+  }
+}
 .course-tabs-navigation {
   border-bottom: solid 1px #EAEAEA;
 }