comments: refactor to use ViewComponent.

app/components/comment_component.rb

@@ -0,0 +1,19 @@
+# frozen_string_literal: true
+
+class CommentComponent < ApplicationComponent
+  attr_reader :comment, :context, :dtext_data, :moderation_reports, :show_deleted, :current_user
+  delegate :link_to_user, :time_ago_in_words_tagged, :format_text, :policy, to: :helpers
+
+  def initialize(comment:, context: nil, dtext_data: nil, moderation_reports: [], show_deleted: false, current_user: User.anonymous)
+    @comment = comment
+    @context = context
+    @dtext_data = dtext_data
+    @moderation_reports = moderation_reports
+    @show_deleted = show_deleted
+    @current_user = current_user
+  end
+
+  def render?
+    !comment.is_deleted? || show_deleted || current_user.is_moderator?
+  end
+end