Feature/profile image uploads (#687)

* Introduce ActiveStorage

* Add active storage related service gems

* Update storage.yml

* Install image processing gem
- sudo apt-get install libvips (required dependency)

* Set default active storage service

* Add profile image to user model

* Amend form to allow profile images to be saved, introduce stimulus controller.

* Purge image when form is blank

* Update markup/stimulus controller

* Add test for profile image uplaods

* Add profile image validation

* Use rails guide gem versions

* Use correct ERB syntax and make all storage options configurable

* Ensure form submits when user clears profile image

* Add profile image thumbnail method

* Extract profile image to a partial

* Updates env.example and storage.yml

* Fix bug with double form save

* Add profile image to the sidenav

* Update production config

* Fix ERB formatting

* normalize en.yml

* Handle non-square images

* Use pre-processing on thumbnail variant

* Resovle gemfile.lock issues

* Rubocop style changes

---------

Signed-off-by: Christian <47796704+crobbo@users.noreply.github.com>
Co-authored-by: Christian Robinson <christian@robbo.dev>

app/models/user.rb

@@ -11,6 +11,12 @@ class User < ApplicationRecord
 
   enum :role, { member: "member", admin: "admin" }, validate: true
 
+  has_one_attached :profile_image do |attachable|
+    attachable.variant :thumbnail, resize_to_limit: [ 150, 150 ], preprocessed: true
+  end
+
+  validate :profile_image_size
+
   generates_token_for :password_reset, expires_in: 15.minutes do
     password_salt&.last(10)
   end
@@ -74,4 +80,10 @@ class User < ApplicationRecord
   def deactivated_email
     email.gsub(/@/, "-deactivated-#{SecureRandom.uuid}@")
   end
+
+  def profile_image_size
+    if profile_image.attached? && profile_image.byte_size > 5.megabytes
+      errors.add(:profile_image, "is too large. Maximum size is 5 MB.")
+    end
+  end
 end