B8f7a improve templates pages for seo (#5)

* Templates

* access templates without login also

* Set required on UI

* Improve templates pages for SEO

* test case for Templates

* Refactor SitemapController

* Cosmetic changes to templates

Co-authored-by: Julien Nahum <jhumanj@MacBook-Pro-de-Julien.local>

resources/js/store/modules/open/templates.js

@@ -0,0 +1,55 @@
+import Vue from 'vue'
+import axios from 'axios'
+
+// state
+export const state = {
+  content: [],
+  loading: false
+}
+
+// getters
+export const getters = {
+  getById: (state) => (id) => {
+    if (state.content.length === 0) return null
+    return state.content.find(item => item.id === id)
+  },
+  getBySlug: (state) => (slug) => {
+    if (state.content.length === 0) return null
+    return state.content.find(item => item.slug === slug)
+  },
+}
+
+// mutations
+export const mutations = {
+  set (state, items) {
+    state.content = items
+  },
+  addOrUpdate (state, item) {
+    state.content = state.content.filter((val) => val.id !== item.id)
+    state.content.push(item)
+  },
+  startLoading () {
+    state.loading = true
+  },
+  stopLoading () {
+    state.loading = false
+  }
+}
+
+// actions
+export const actions = {
+  load (context) {
+    context.commit('set', [])
+    context.commit('startLoading')
+    return axios.get('/api/templates').then((response) => {
+      context.commit('set', response.data)
+      context.commit('stopLoading')
+    })
+  },
+  loadIfEmpty ({ context, dispatch, state }) {
+    if (state.content.length === 0) {
+      return dispatch('load')
+    }
+    return Promise.resolve()
+  },
+}