Added/Updated admin dashboard tables

• Added:
- New Account filtering
- PreviewCard viewing/sorting/filtering deleting (todo)
- DeletePreviewCardWorker, Service
- Status viewing/sorting/filtering deleting
- ChatMessage viewing/sorting/filtering deleting (todo)
- Account > Follows view

• Updated:
- LinkBlock to sort alphabetically
- Groups to be under "Moderation" instead of "Admin" in navigation.rb
- Status in admin to have group name/link
- Reports reset button
- Group filtering/sorting
- LinkBlock filtering/sorting
- Account now has bio and few more data points in dashboard

app/controllers/admin/preview_cards_controller.rb

@@ -0,0 +1,61 @@
+# frozen_string_literal: true
+
+module Admin
+  class PreviewCardsController < BaseController
+    before_action :set_preview_card, except: [:index]
+
+    def index
+      authorize :preview_card, :index?
+      
+      @preview_cards = filtered_preview_cards.page(params[:page])
+      @form = Form::PreviewCardBatch.new
+    end
+
+    def show
+      authorize @preview_card, :show?
+      @form = Form::PreviewCardBatch.new
+    end
+
+    def create
+      authorize :preview_card, :update?
+
+      @form         = Form::PreviewCardBatch.new(form_preview_card_batch_params.merge(current_account: current_account, action: action_from_button))
+      flash[:alert] = I18n.t('admin.statuses.failed_to_execute') unless @form.save
+
+      redirect_to admin_preview_cards_path(@account.id, current_params)
+    rescue ActionController::ParameterMissing
+      flash[:alert] = I18n.t('admin.statuses.no_status_selected')
+
+      redirect_to admin_preview_cards_path(@account.id, current_params)
+    end
+
+    private
+
+    def form_preview_card_batch_params
+      params.require(:form_preview_card_batch).permit(:action, preview_card_ids: [])
+    end
+
+    def filtered_preview_cards
+      PreviewCardFilter.new(filter_params).results.order(id: :desc)
+    end
+
+    def filter_params
+      params.permit(
+        :title,
+        :description,
+        :url,
+      )
+    end
+
+    def set_preview_card
+      @preview_card = PreviewCard.find(params[:id])
+    end
+
+    def action_from_button
+      if params[:delete]
+        'delete'
+      end
+    end
+
+  end
+end