A few formatting fixes. (#3473)

- Reshuffle the floating icons to put the most common thing on top

- In the sidebar, if a card has only top-level items (no subsections)
then move the text to the left to soak up the unused room normally
reserved for the chevron. This improves the look for blog-related cards

- Put a wee bit more spacing between the links in the header on mobile
to make 'em easier to hit with fat fingers.

layouts/partials/sidebar_level.html

@@ -3,7 +3,16 @@
 {{ $current := .current }}
 {{ $collapse := .collapse }}
 
-<ul{{ if not $collapse }} class="show"{{ end }}>
+{{ $leafSection := true }}
+{{ range $pages }}
+    {{ if eq .Parent $parent }}
+            {{ if not .IsPage }}
+                {{ $leafSection = false }}
+            {{ end }}
+    {{ end }}
+{{ end }}
+
+<ul class="{{ if not $collapse }}show{{ end }}{{ if $leafSection }} leaf-section{{ end }}">
     {{ range $pages }}
         {{ if eq .Parent $parent }}
             <li>

src/sass/misc/_floaters.scss

@@ -81,18 +81,18 @@
 
 #switch-lang-container {
     #switch-lang {
-        bottom: calc(6rem + #{$footerHeight});
+        bottom: calc(1rem + #{$footerHeight});
     }
 }
 
 #edit-this-page-container {
     #edit-this-page {
-        bottom: calc(3.5rem + #{$footerHeight});
+        bottom: calc(6rem + #{$footerHeight});
     }
 }
 
 #report-site-bugs-container {
     #report-site-bugs {
-        bottom: calc(1rem + #{$footerHeight});
+        bottom: calc(3.5rem + #{$footerHeight});
     }
 }

src/sass/misc/_header.scss

@@ -82,8 +82,8 @@ header {
         font-weight: 500;
         color: $textBrandColor;
         font-size: 1.1em;
-        margin-left: .3rem;
+        margin-left: .5rem;
-        margin-right: .3rem;
+        margin-right: .5rem;
 
         @media (min-width: $bp-sm) {
             font-size: .9em;

src/sass/misc/_sidebar.scss

@@ -80,6 +80,10 @@
             }
         }
 
+        .body > ul.leaf-section > li {
+            margin-left: 0;
+        }
+
         button {
             cursor: pointer;
             border: 0;