Refactor alert for mobile fix 1 of 2

Author: darith27

assets/html/header.html

@@ -34,14 +34,11 @@
       </div>
     </div>
   </section>
-  
-  <header style = "box-shadow: 0px 4px 8px darkgrey !important;" class="usa-header usa-header-basic" role="banner" id = "myHeader">
-
-    <section class="alert">
+  <section class="alert">
       <span class="closebtn" onclick="this.parentElement.style.display='none';">&times;</span>
       <strong>⚠ Please Note:</strong> The <a href="https://api.nasa.gov#earth">Earth API</a> will be archived and replaced with <a href="https://www.earthdata.nasa.gov/">https://www.earthdata.nasa.gov/</a> soon. Please update your bookmarks or projects as needed.
-    </section>
-
+  </section>
+  <header style = "box-shadow: 0px 4px 8px darkgrey !important;" class="usa-header usa-header-basic" role="banner" id = "myHeader">
     <div class="usa-nav-container">
       <div class="usa-navbar">
         <div class="usa-logo" id="basic-logo">
@@ -91,4 +88,4 @@
       </form>
       </nav>
     </div>
-  </header>
+  </header>