Simplify method names in image/document fields

We were using long, unique names because these methods used to be helper
methods. Helper methods should have unique names because otherwise one
method would overwrite the other.

Now that we're using components, we can omit the `image_` and
`document_` prefixes.

app/components/documents/fields_component.html.erb

@@ -9,15 +9,15 @@
 
   <div class="small-12 column attachment-actions">
     <div class="small-9 column action-add attachment-errors document-attachment">
-      <%= render_attachment %>
+      <%= file_field %>
     </div>
     <div class="small-3 column action-remove text-right">
-      <%= render_destroy_document_link %>
+      <%= destroy_link %>
     </div>
   </div>
 
   <div class="small-6 column">
-    <p class="file-name"><%= document_attachment_file_name %></p>
+    <p class="file-name"><%= file_name %></p>
   </div>
 
   <div class="small-12 column">

app/components/documents/fields_component.rb

@@ -12,11 +12,11 @@ class Documents::FieldsComponent < ApplicationComponent
       f.object
     end
 
-    def document_attachment_file_name
+    def file_name
       document.attachment_file_name
     end
 
-    def render_destroy_document_link
+    def destroy_link
       if !document.persisted? && document.cached_attachment.present?
         link_to t("documents.form.delete_button"),
           direct_upload_destroy_path(
@@ -33,19 +33,19 @@ class Documents::FieldsComponent < ApplicationComponent
       end
     end
 
-    def render_attachment
+    def file_field
       klass = document.persisted? || document.cached_attachment.present? ? " hide" : ""
       f.file_field :attachment,
         label_options: { class: "button hollow #{klass}" },
         accept: accepted_content_types_extensions,
         class: "js-document-attachment",
         data: {
-          url: document_direct_upload_path,
+          url: direct_upload_path,
           nested_document: true
         }
     end
 
-    def document_direct_upload_path
+    def direct_upload_path
       direct_uploads_path("direct_upload[resource_type]": document.documentable_type,
                           "direct_upload[resource_id]": document.documentable_id,
                           "direct_upload[resource_relation]": "documents")

app/components/images/fields_component.html.erb

@@ -11,15 +11,15 @@
 
   <div class="small-12 column attachment-actions">
     <div class="small-9 column action-add attachment-errors image-attachment">
-      <%= render_image_attachment %>
+      <%= file_field %>
     </div>
     <div class="small-3 column action-remove text-right">
-      <%= render_destroy_image_link %>
+      <%= destroy_link %>
     </div>
   </div>
 
   <div class="small-6 column">
-    <p class="file-name"><%= image_attachment_file_name %></p>
+    <p class="file-name"><%= file_name %></p>
   </div>
 
   <div class="small-12 column">

app/components/images/fields_component.rb

@@ -13,11 +13,11 @@ class Images::FieldsComponent < ApplicationComponent
       f.object
     end
 
-    def image_attachment_file_name
+    def file_name
       image.attachment_file_name
     end
 
-    def render_destroy_image_link
+    def destroy_link
       if !image.persisted? && image.cached_attachment.present?
         link_to t("images.form.delete_button"),
           direct_upload_destroy_path(
@@ -34,25 +34,25 @@ class Images::FieldsComponent < ApplicationComponent
       end
     end
 
-    def render_image_attachment
+    def file_field
       klass = image.persisted? || image.cached_attachment.present? ? " hide" : ""
       f.file_field :attachment,
         label_options: { class: "button hollow #{klass}" },
-        accept: imageable_accepted_content_types_extensions,
+        accept: accepted_content_types_extensions,
         class: "js-image-attachment",
         data: {
-          url: image_direct_upload_path,
+          url: direct_upload_path,
           nested_image: true
         }
     end
 
-    def image_direct_upload_path
+    def direct_upload_path
       direct_uploads_path("direct_upload[resource_type]": imageable.class.name,
                           "direct_upload[resource_id]": imageable.id,
                           "direct_upload[resource_relation]": "image")
     end
 
-    def imageable_accepted_content_types_extensions
+    def accepted_content_types_extensions
       Setting.accepted_content_types_for("images").map do |content_type|
         if content_type == "jpg"
           ".jpg,.jpeg"