Reduced wysiwyg heading sizes (#8868)

This reduces the base heading sizes for wiki pages, to a little bit larger than work packages, with a bit faster falloff. It also floats the table of contents to the right instead of the left.

https://community.openproject.com/projects/openproject/work_packages/35552/activity?query_id=2432

frontend/src/global_styles/content/user-content/_index.sass

@@ -9,8 +9,8 @@
 @import 'placeholder'
 
 .op-uc-container
-  --op-uc-heading-base: 3.5rem
-  --op-uc-heading-falloff: 0.7
+  --op-uc-heading-base: 1.8rem
+  --op-uc-heading-falloff: 0.85
   display: block
   overflow: hidden
   font-size: var(--wiki-default-font-size)

frontend/src/global_styles/content/user-content/_toc.sass

@@ -3,8 +3,8 @@
   font-size: var(--wiki-toc-ul-font-size)
   background-color: #fafafa
   border: 1px solid #dadada
-  float: left
-  margin: 1rem 2rem 1rem 0rem
+  float: right
+  margin: 1rem 0rem 1rem 2rem
   padding: 1.5rem 1.5rem 1.5rem 0rem
 
   &--list

frontend/src/global_styles/layout/_toolbar.sass

@@ -216,12 +216,6 @@ $nm-color-success-background: #d8fdd1
     @include text-shortener
     padding: 0
 
-    // WYSIWYG content creates bigger headings than this. When viewing on screen, this is okay since the general page
-    // layout does a decent job conveying hierarchy. However, when printing we need to bump the size of this heading
-    // (which is really the page heading) to be larger than the user-content h1.
-    @media print
-      font-size: 4rem
-
   div.inline-edit
     cursor: pointer