Introduce basic js unit tests

Signed-off-by: Thomas Citharel <tcit@tcit.fr>

js/src/components/Logo.vue

@@ -1,12 +1,13 @@
 <template>
-  <MobilizonLogo />
+  <mobilizon-logo />
 </template>
 
 <script lang="ts">
 import { Component, Prop, Vue } from "vue-property-decorator";
 // eslint-disable-next-line @typescript-eslint/ban-ts-comment
 // @ts-ignore
-import MobilizonLogo from "../assets/mobilizon_logo.svg?inline";
+import MobilizonLogo from "../assets/mobilizon_logo.svg";
+// TODO: Jest does not like the ?inline after the import path
 
 @Component({
   components: {