Don't show subject (annoying when leaving comment); restrict format

Ref #32

config/sync/core.entity_form_display.comment.comment.default.yml

@@ -6,6 +6,7 @@ dependencies:
     - comment.type.comment
     - field.field.comment.comment.comment_body
   module:
+    - allowed_formats
     - text
 _core:
   default_config_hash: i9gg03KbztdQ0LmR6WLr5smEj5TBKU12U2X8ZlSpKJA
@@ -15,22 +16,20 @@ bundle: comment
 mode: default
 content:
   author:
-    weight: -2
+    weight: 0
     region: content
+    settings: {  }
+    third_party_settings: {  }
   comment_body:
     type: text_textarea
-    weight: 11
+    weight: 1
     settings:
       rows: 5
       placeholder: ''
-    third_party_settings: {  }
+    third_party_settings:
+      allowed_formats:
+        hide_help: '1'
+        hide_guidelines: '0'
     region: content
-  subject:
-    type: string_textfield
-    weight: 10
-    settings:
-      size: 60
-      placeholder: ''
-    third_party_settings: {  }
-    region: content
-hidden: {  }
+hidden:
+  subject: true

config/sync/field.field.comment.comment.comment_body.yml

@@ -6,7 +6,16 @@ dependencies:
     - comment.type.comment
     - field.storage.comment.comment_body
   module:
+    - allowed_formats
     - text
+third_party_settings:
+  allowed_formats:
+    minimalhtml: minimalhtml
+    basic_html: '0'
+    restricted_html: '0'
+    minimalhtmltitle: '0'
+    full_html: '0'
+    plain_text: '0'
 _core:
   default_config_hash: TmAKjNrJ7RR60YpqvJq_QqEewYe_S8Kd23n8VRCqiWs
 id: comment.comment.comment_body