Tidy up comments

app/controllers/comments_controller.rb

@@ -2,10 +2,8 @@ class CommentsController < ApplicationController
   before_action :set_bubble
 
   def create
-    @comment = @bubble.comments.create(comment_params)
-    @comment.save
-
-    redirect_to bubble_path(@bubble, anchor: "comment_#{@comment.id}")
+    @bubble.comments.create!(comment_params)
+    redirect_to @bubble
   end
 
   private

app/views/comments/_new.html.erb

@@ -5,8 +5,9 @@
       <strong><%= Current.user.name %></strong>
     </div>
     <div class="comment__body txt-align-start">
-      <%= form_with model: [@bubble, @bubble.comments.build], class: "flex flex-column gap full-width" do | form | %>
-      <%= form.text_area :body, class: "input", required: true, placeholder: Current.user == @bubble.creator && @bubble.comments.size == 1 ? "Add some notes…" : "Type your comment…", rows: 4 %>
+      <%= form_with model: Comment.new, url: bubble_comments_path(@bubble), class: "flex flex-column gap full-width" do | form | %>
+        <%= form.text_area :body, class: "input", required: true, rows: 4,
+              placeholder: (@bubble.comments.empty? && @bubble.creator == Current.user) ? "Add some notes…" : "Type your comment…" %>
 
       <%= form.button class: "btn btn--reversed center" do %>
         <%= image_tag "check.svg", aria: { hidden: "true" }, size: 24 %>