refactor: reorganize components

These changes are driven by the directory structure proposed by Nuxt - https://nuxt.com/docs/guide/directory-structure/components#component-names

Note that:

• components files are named by their full name, so components/Dashboard/Data/Detail.vue becomecomponents/Dashboard/Data/DashboardDataDetail.vue as the Nuxt documentation suggests, for clarity sake
• New... components were renamed ...New in order to follow the directory structure (NewDataLink.vue become DataLink/DataLinkNew.vue)
• the Node/NodeParameters.vue component was renamed as Node/NodeMembers.vue as only include NodeMembers and not general parameters
• the UserModal.vue component was renamed as Parameters.vue as it now includes information that is not user related
• old files that weren't reimplemented yet (and so kept for legacy purpose) were moved to and OLD folder