Change usage of "lu_rootcategory_name" Language label

Currently we are using "lu_rootcategory_name" label in Admin to list in navigation bar in Catalog.

[B]TODO:[/B]

[B]1.[/B] For the FRONT

We need to change the following method to use "lu_home" (label in Advanced theme) instead of the one defined in ConfigValue('Root_Name') configuration variable.

function RootCategoryName($params)

{ $phrase_name = $this->Application->ConfigValue('Root_Name'); $no_editing = array_key_exists('no_editing', $params) && $params['no_editing']; return $this->Application->Phrase($phrase_name, !$no_editing); }

Also, add "lu_home" to all Front end language packs of ALL themes (advanced already has it)

[B]2.[/B] For ADMIN

Change lu_rootcategory_name to la_rootcategory_name and move to Admin Language pack and get rid of the deprecated variable "Root_Name".