IT translation review for set6A; FR and ES linguistic

...a/newview/skins/default/xui/es/panel_preferences_chat.xml

indra/newview/skins/default/xui/fr/floater_color_picker.xml

indra/newview/skins/default/xui/it/floater_about_land.xml

.../newview/skins/default/xui/it/floater_avatar_textures.xml

indra/newview/skins/default/xui/it/floater_beacons.xml

indra/newview/skins/default/xui/it/floater_help_browser.xml

indra/newview/skins/default/xui/it/floater_image_preview.xml

indra/newview/skins/default/xui/it/floater_incoming_call.xml

indra/newview/skins/default/xui/it/floater_lagmeter.xml

...a/newview/skins/default/xui/it/floater_media_settings.xml

indra/newview/skins/default/xui/it/floater_nearby_chat.xml

.../newview/skins/default/xui/it/floater_preview_gesture.xml

...iew/skins/default/xui/it/floater_preview_gesture_info.xml

...skins/default/xui/it/floater_preview_gesture_shortcut.xml

...ew/skins/default/xui/it/floater_preview_gesture_steps.xml

.../newview/skins/default/xui/it/floater_preview_texture.xml

indra/newview/skins/default/xui/it/floater_sys_well.xml

indra/newview/skins/default/xui/it/floater_telehub.xml

indra/newview/skins/default/xui/it/inspect_object.xml

indra/newview/skins/default/xui/it/panel_bottomtray.xml