changes/changelog.d/872.feature

changes/notes.rst

front/src/App.vue

front/src/assets/network.png

front/src/components/About.vue

front/src/components/Home.vue

front/src/components/audio/album/Widget.vue

front/src/components/auth/LoginForm.vue

front/src/components/auth/SignupForm.vue

front/src/components/instance/Stats.vue

front/src/router/index.js

front/src/store/instance.js

front/src/style/_main.scss

front/src/style/themes/_dark.scss

front/src/views/auth/Login.vue

front/src/views/auth/Signup.vue