feat: review backend and frontend

- update to the latest version of Java/SpringBoot
- update to the latest version NuxtJS
- add account/password update
- add account creation
- add account password reset
- add bundle to regroup questions and add default questions on user creation
- add bundle creation

frontend/components/MainHeader.vue

@@ -0,0 +1,31 @@
+<template>
+  <header class="header">
+    <div class="main-logo">
+      <nuxt-link :to="useRoute().name === 'index' ? '' : '/'">
+        <img src="/images/logo/main_logo.svg" width="245px" alt="Boussole PLUSS"/>
+      </nuxt-link>
+    </div>
+  </header>
+</template>
+
+<style lang="scss" scoped>
+.header {
+  width: 100%;
+  height: 115px;
+  margin-bottom: $xxx_medium;
+  background-repeat: no-repeat;
+  background-image: url("/images/decoration/background.svg");
+  background-position: bottom center, 50%;
+  background-size: cover;
+
+  .main-logo {
+    position: absolute;
+    margin-left: auto;
+    margin-right: auto;
+    top: 40px;
+    left: 0;
+    right: 0;
+    width: 225px;
+  }
+}
+</style>