Fix use of inline CSS in public pages (#13576)

Change `account_link_to` to use an image tag rather than some
inline CSS. Dropped the `size` parameter in the process, but it wasn't
used for anything except the default value of 36px.

Dropped CSS rules that were always overriden, and defaulted to 36px width
and height instead.

app/helpers/home_helper.rb

@@ -7,13 +7,13 @@ module HomeHelper
     }
   end
 
-  def account_link_to(account, button = '', size: 36, path: nil)
+  def account_link_to(account, button = '', path: nil)
     content_tag(:div, class: 'account') do
       content_tag(:div, class: 'account__wrapper') do
         section = if account.nil?
                     content_tag(:div, class: 'account__display-name') do
                       content_tag(:div, class: 'account__avatar-wrapper') do
-                        content_tag(:div, '', class: 'account__avatar', style: "width: #{size}px; height: #{size}px; background-size: #{size}px #{size}px; background-image: url(#{full_asset_url('avatars/original/missing.png', skip_pipeline: true)})";)
+                        image_tag(full_asset_url('avatars/original/missing.png', skip_pipeline: true), class: 'account__avatar';)
                       end +
                         content_tag(:span, class: 'display-name') do
                           content_tag(:strong, t('about.contact_missing')) +
@@ -23,7 +23,7 @@ module HomeHelper
                   else
                     link_to(path || ActivityPub::TagManager.instance.url_for(account), class: 'account__display-name') do
                       content_tag(:div, class: 'account__avatar-wrapper') do
-                        content_tag(:div, '', class: 'account__avatar', style: "width: #{size}px; height: #{size}px; background-size: #{size}px #{size}px; background-image: url(#{full_asset_url(current_account&.user&.setting_auto_play_gif ? account.avatar_original_url : account.avatar_static_url)})";)
+                        image_tag(full_asset_url(current_account&.user&.setting_auto_play_gif ? account.avatar_original_url : account.avatar_static_url), class: 'account__avatar';)
                       end +
                         content_tag(:span, class: 'display-name') do
                           content_tag(:bdi) do

app/javascript/styles/mastodon/about.scss

@@ -543,12 +543,6 @@ $small-breakpoint: 960px;
         flex: 0 0 auto;
       }
 
-      &__avatar {
-        width: 44px;
-        height: 44px;
-        background-size: 44px 44px;
-      }
-
       .display-name {
         font-size: 15px;
 
@@ -749,12 +743,6 @@ $small-breakpoint: 960px;
         display: flex;
         align-items: center;
       }
-
-      .account__avatar {
-        width: 44px;
-        height: 44px;
-        background-size: 44px 44px;
-      }
     }
 
     &__counters__wrapper {

app/javascript/styles/mastodon/components.scss

@@ -1318,8 +1318,13 @@
 
 .account__avatar {
   @include avatar-radius;
+  display: block;
   position: relative;
 
+  width: 36px;
+  height: 36px;
+  background-size: 36px 36px;
+
   &-inline {
     display: inline-block;
     vertical-align: middle;

app/javascript/styles/mastodon/widgets.scss

@@ -93,12 +93,6 @@
       display: flex;
       align-items: center;
     }
-
-    .account__avatar {
-      width: 44px;
-      height: 44px;
-      background-size: 44px 44px;
-    }
   }
 
   .trends__item {

app/views/admin/reports/index.html.haml

@@ -25,7 +25,7 @@
   - target_account = reports.first.target_account
   .report-card
     .report-card__profile
-      = account_link_to target_account, '', size: 36, path: admin_account_path(target_account.id)
+      = account_link_to target_account, '', path: admin_account_path(target_account.id)
       .report-card__profile__stats
         = link_to t('admin.reports.account.notes', count: target_account.targeted_moderation_notes.count), admin_account_path(target_account.id)
         %br/