Fixed overlapping of the back to top button and the right hand drawer…

… button.

- Fix moodle-an-hochschulen#378 (UN-245)

scss/boost_union/post.scss

@@ -339,6 +339,21 @@
     right: calc(#{$drawer-right-width} + 2rem);
 }
 
+/* Back to top button position */
+@include media-breakpoint-only(sm) {
+    .footer-bottom-menu #back-to-top {
+        bottom: 7rem;
+        right: 3rem;
+    }
+}
+
+/* Back to top button position */
+@include media-breakpoint-only(xs) {
+    .footer-bottom-menu #back-to-top {
+        bottom: 5rem;
+    }
+}
+
 /* As soon as the sticky footer is shown (especially in the database activity),
    the back to top button has to be moved further up.
    Again, we have to distinguish between really small screens and larger screens
@@ -1920,6 +1935,7 @@ so the dropdown menu won't hide behind the screen on responsive */
             /* Increases the space at the bottom for the footer popover, as the bottom menu bar might hide it. */
             .btn-footer-popover {
                 bottom: 4rem;
+                right: 3rem;
             }
         }
     }
@@ -2027,10 +2043,31 @@ so the dropdown menu won't hide behind the screen on responsive */
 @include media-breakpoint-down(sm) {
     /* Move the learning tools floating button up as soon as the bottom menu is shown. */
     #page.footer-bottom-menu .learningtools-action-info .floating-button {
+        right: 25px;
         bottom: 4rem;
     }
 }
 
+/* Back to top button position */
+@include media-breakpoint-down(sm) {
+    /* Move the back to top button when learning tools floating button and as soon as the bottom menu is shown. */
+    #page.footer-bottom-menu .learningtools-action-info ~ #back-to-top {
+        right: 3rem;
+        bottom: 8rem;
+    }
+    .theme-boost-union-smartmenu #page-wrapper #page.footer-bottom-menu .learningtools-action-info ~ .btn-footer-popover {
+        right: 5rem;
+    }
+}
+
+/* Move the back to top button when learning tools floating button and as soon as the bottom menu is shown. */
+@include media-breakpoint-down(xs) {
+    #page .learningtools-action-info ~ #back-to-top {
+        bottom: 5rem;
+    }
+}
+
+
 
 /*---------------------------------------
  * Dash Pro