ruby on railsでの非同期通信ができません

Question

現在、ruby on railsにてSNSを作成しています。いいね機能をつけたので、他のサービスのようにjQueryを使った非同期通信を行えるようにしたかったのですが、どうもうまくいきません。今の自分にはうまくいかない原因がさっぱりわかりませんので、どうかご教授いただければ幸いです。以下、いいね機能に関連したコードを記載しています。

# /config/routes.rb
Rails.application.routes.draw do
  root to: 'toppages#index'
  
  get 'login', to: 'sessions#new'
  post 'login', to: 'sessions#create'
  delete 'logout', to: 'sessions#destroy'
  
  get 'signup', to: 'users#new'
  resources :users do
    member do
      get :likes
    end
  end
  
  resources :posts, only: [:create, :destroy, :new, :show] do
    resources :comments, only: [:create, :destroy, :show, :index]
  end
  
  resources :relationships, only: [:create, :destroy]
  resources :favorites, only: [:create, :destroy]
  # For details on the DSL available within this file, see http://guides.rubyonrails.org/routing.html
end

# app/models/user.rb
class User < ApplicationRecord
  before_save { self.email.downcase! }
  validates :name, presence: true, length: { maximum: 50 }
  validates :email, presence: true, length: { maximum: 255 },
                    format: { with: /\A[\w+\-.]+@[a-z\d\-.]+.[a-z]+\z/i },
                    uniqueness: { case_sensitive: false }
  has_secure_password
  
  has_many :posts, dependent: :destroy
  has_many :relationships, dependent: :destroy
  has_many :followings, through: :relationships, source: :follow
  has_many :reverses_of_relationship, class_name: 'Relationship', foreign_key: 'follow_id'
  has_many :followers, through: :reverses_of_relationship, source: :user
  
  has_many :rejects, dependent: :destroy
  has_many :refusals, through: :rejects, source: :reject
  has_many :reverses_of_reject, class_name: 'Reject', foreign_key: 'reject_id'
  has_many :refusers, through: :reverses_of_reject, source: :user
  
  has_many :favorites, dependent: :destroy
  has_many :likes, through: :favorites, source: :post, dependent: :destroy
  
  has_many :comments, dependent: :destroy
  
  def follow(other_user)
    unless self == other_user
      self.relationships.find_or_create_by(follow_id: other_user.id)
    end
  end

  def unfollow(other_user)
    relationship = self.relationships.find_by(follow_id: other_user.id)
    relationship.destroy if relationship
  end

  def following?(other_user)
    self.followings.include?(other_user)
  end
  
  def refuse(other_user)
    unless self == other_user
      self.rejects.find_or_create_by(reject_id: other_user.id)
    end
  end
  
  def unrefuse(other_user)
    reject = self.rejects.find_by(reject_id: other_user.id)
    reject.destroy if reject
  end
  
  def refusing?(other_user)
    self.refusals.include?(other_user)
  end
  
  def favorite(postFavorite)
    self.favorites.find_or_create_by(post_id: postFavorite.id)
  end
  
  def unfavorite(postFavorite)
    favorite = self.favorites.find_by(post_id: postFavorite.id)
    favorite.destroy if favorite
  end
  
  def favoritePost?(postFavorite)
    self.likes.include?(postFavorite)
  end
  
  mount_uploader :image, ImageUploader
end

# app/models/favorite.rb
class Favorite < ApplicationRecord
  belongs_to :user
  belongs_to :post
end

# app/controllers/favorites_controller.rb
class FavoritesController < ApplicationController
  
  before_action :require_user_logged_in
  
  def create
    post = Post.find(params[:post_id])
    current_user.favorite(post)
    flash[:success] = 'お気に入りに登録しました。'
  end

  def destroy
    post = Post.find(params[:post_id])
    current_user.unfavorite(post)
    flash[:success] = 'お気に入りから削除しました。'
  end
end

# app/views/favorites/_favorite_button.html.erb
<% if current_user.favoritePost?(post) %>
  <div class="button_wrapper">
    <%= form_with(model: current_user.favorites.find_by(post_id: post.id), id: "like-button", method: :delete) do |f| %>
      <%= hidden_field_tag :post_id, post.id %>
      <%= f.submit 'お気に入りから外す', class: 'btn btn-danger btn-sm favorite-button' %>
    <% end %>
  </div>
<% else %>
  <div class="button_wrapper">
    <%= form_with(model: current_user.favorites.build, id: "like-button") do |f| %>
      <%= hidden_field_tag :post_id, post.id %>
      <%= f.submit 'お気に入りに登録する', class: 'btn btn-primary btn-sm favorite-button' %>
    <% end %>
  </div>
<% end %>

# app/views/favorites/create.js.erb
$("#like-buttons").html("<%= j(render partial: 'favorite_button') %>");

# app/views/favorites/destroy.js.erb
$("#like-buttons").html("<%= j(render partial: 'favorite_button') %>");