Add: #883 管理者の設定したカスタムCSSをユーザー単位で無効にするオプション (#902)

* Add: #883 管理者の設定したカスタムCSSをユーザー単位で無効にするオプション

* ラベル変更

app/views/custom_css/show_system.css.erb

@@ -0,0 +1,6 @@
+<%- @user_roles.each do |role| %>
+.user-role-<%= role.id %> {
+  --user-role-accent: <%= role.color %>;
+}
+
+<%- end %>

app/views/layouts/application.html.haml

@@ -34,7 +34,10 @@
     = csrf_meta_tags unless skip_csrf_meta_tags?
     %meta{ name: 'style-nonce', content: request.content_security_policy_nonce }
 
-    = stylesheet_link_tag custom_css_path, skip_pipeline: true, host: root_url, media: 'all'
+    - if server_css?
+      = stylesheet_link_tag custom_css_path, skip_pipeline: true, host: root_url, media: 'all'
+    - else
+      = stylesheet_link_tag system_css_path, skip_pipeline: true, host: root_url, media: 'all'
 
     - if user_custom_css?
       = stylesheet_link_tag user_custom_css_path({ version: user_custom_css_version }), skip_pipeline: true, host: root_url, media: 'all'

app/views/settings/preferences/custom_css/show.html.haml

@@ -8,6 +8,13 @@
   = render 'shared/error_messages', object: current_user
 
   = f.simple_fields_for :settings, current_user.settings do |ff|
+    .fields-group
+      = ff.input :'web.use_server_css',
+                 hint: false,
+                 label: I18n.t('simple_form.labels.defaults.setting_use_server_css'),
+                 kmyblue: true,
+                 wrapper: :with_label
+
     .fields-group
       = ff.input :'web.use_custom_css',
                  hint: false,

app/views/system_css/show.css.erb

@@ -0,0 +1,6 @@
+<%- @user_roles.each do |role| %>
+.user-role-<%= role.id %> {
+  --user-role-accent: <%= role.color %>;
+}
+
+<%- end %>