feat: add settings page (#274)

* feat: add settings page

* feat: add updating family name

* fix: formatting

* refactor: update to use Rails label helper

app/controllers/settings_controller.rb

@@ -0,0 +1,21 @@
+class SettingsController < ApplicationController
+  before_action :authenticate_user!
+
+  def edit
+  end
+
+  def update
+    if Current.user.update(user_params)
+      redirect_to root_path, notice: "Profile updated successfully."
+    else
+      render :edit, status: :unprocessable_entity
+    end
+  end
+
+  private
+
+  def user_params
+    params.require(:user).permit(:first_name, :last_name, :email, :password, :password_confirmation,
+                                 family_attributes: [ :name, :id ])
+  end
+end