Refactor/upgrade backend and frontend parts (#2)

* ♻️ Refactor and simplify backend code

* ♻️ Refactor frontend state, integrate typesafe-vuex accessors into state files

* ♻️ Use new state accessors and standardize layout

* 🔒 Upgrade and fix npm security audit

* 🔧 Update local re-generation scripts

* 🔊 Log startup exceptions to detect errors early

* ✏️ Fix password reset token content

* 🔥 Remove unneeded Dockerfile directives

* 🔥 Remove unnecessary print

* 🔥 Remove unnecessary code, upgrade dependencies in backend

* ✏️ Fix typos in docstrings and comments

* 🏗️ Improve user Depends utilities to simplify and remove code

* 🔥 Remove deprecated SQLAlchemy parameter

{{cookiecutter.project_slug}}/frontend/src/views/main/admin/Admin.vue

@@ -5,7 +5,7 @@
 <script lang="ts">
 import { Component, Vue } from 'vue-property-decorator';
 import { store } from '@/store';
-import { readHasAdminAccess } from '@/store/main/accessors';
+import { readHasAdminAccess } from '@/store/main/getters';
 
 const routeGuardAdmin = async (to, from, next) => {
   if (!readHasAdminAccess(store)) {