Improve public account cards (#6559)

- Add follow/unfollow/remote follow buttons
- Format the bio properly
- Always show username@domain, even for local accounts

app/views/accounts/_follow_button.html.haml

@@ -0,0 +1,23 @@
+- relationships ||= nil
+
+- unless account.memorial? || account.moved?
+  - if user_signed_in?
+    - requested = relationships ? relationships.requested[account.id].present? : current_account.requested?(account)
+    - following = relationships ? relationships.following[account.id].present? : current_account.following?(account)
+
+  - if user_signed_in? && current_account.id != account.id && !requested
+    .controls
+      - if following
+        = link_to account_unfollow_path(account), data: { method: :post }, class: 'icon-button' do
+          = fa_icon 'user-times'
+          = t('accounts.unfollow')
+      - else
+        = link_to account_follow_path(account), data: { method: :post }, class: 'icon-button' do
+          = fa_icon 'user-plus'
+          = t('accounts.follow')
+  - elsif !user_signed_in?
+    .controls
+      .remote-follow
+        = link_to account_remote_follow_path(account), class: 'icon-button' do
+          = fa_icon 'user-plus'
+          = t('accounts.remote_follow')

app/views/accounts/_grid_card.html.haml

@@ -1,9 +1,12 @@
 .account-grid-card
   .account-grid-card__header{ style: "background-image: url(#{account.header.url(:original)})" }
+    = render 'accounts/follow_button', account: account, relationships: @relationships
   .account-grid-card__avatar
     .avatar= image_tag account.avatar.url(:original)
   .name
     = link_to TagManager.instance.url_for(account) do
       %span.display_name.emojify= display_name(account)
-      %span.username @#{account.acct}
-  %p.note.emojify= truncate(strip_tags(account.note), length: 150)
+      %span.username
+        @#{account.local? ? account.local_username_and_domain : account.acct}
+        = fa_icon('lock') if account.locked?
+  .account__header__content.p-note.emojify= Formatter.instance.simplified_format(account)

app/views/accounts/_header.html.haml

@@ -1,23 +1,6 @@
 .card.h-card.p-author{ style: "background-image: url(#{account.header.url(:original)})" }
   .card__illustration
-    - unless account.memorial? || account.moved?
-      - if user_signed_in? && current_account.id != account.id && !current_account.requested?(account)
-        .controls
-          - if current_account.following?(account)
-            = link_to account_unfollow_path(account), data: { method: :post }, class: 'icon-button' do
-              = fa_icon 'user-times'
-              = t('accounts.unfollow')
-          - else
-            = link_to account_follow_path(account), data: { method: :post }, class: 'icon-button' do
-              = fa_icon 'user-plus'
-              = t('accounts.follow')
-      - elsif !user_signed_in?
-        .controls
-          .remote-follow
-            = link_to account_remote_follow_path(account), class: 'icon-button' do
-              = fa_icon 'user-plus'
-              = t('accounts.remote_follow')
-
+    = render 'accounts/follow_button', account: account
     .avatar= image_tag account.avatar.url(:original), class: 'u-photo'
 
   .card__bio