Added LinkBlock functionality in admin

• Added:
- LinkBlock functionality in admin

app/controllers/admin/link_blocks_controller.rb

@@ -0,0 +1,47 @@
+# frozen_string_literal: true
+
+module Admin
+  class LinkBlocksController < BaseController
+    before_action :set_link_block, only: [:show, :destroy]
+
+    def index
+      authorize :link_block, :index?
+      @link_blocks = LinkBlock.page(params[:page])
+    end
+
+    def new
+      authorize :link_block, :create?
+      @link_block = LinkBlock.new
+    end
+
+    def create
+      authorize :link_block, :create?
+
+      @link_block = LinkBlock.new(resource_params)
+
+      if @link_block.save
+        log_action :create, @link_block
+        redirect_to admin_link_blocks_path, notice: I18n.t('admin.link_blocks.created_msg')
+      else
+        render :new
+      end
+    end
+
+    def destroy
+      authorize @link_block, :destroy?
+      @link_block.destroy!
+      log_action :destroy, @link_block
+      redirect_to admin_link_blocks_path, notice: I18n.t('admin.link_blocks.destroyed_msg')
+    end
+
+    private
+
+    def set_link_block
+      @link_block = LinkBlock.find(params[:id])
+    end
+
+    def resource_params
+      params.require(:link_block).permit(:link)
+    end
+  end
+end