build: switch from yarn to npm to manage js dependencies and move js contents to root

yarn v1 is being deprecated and starts to have some issues

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

src/api/_entrypoint.ts

@@ -0,0 +1,27 @@
+/**
+ * Host of the instance
+ *
+ * Required
+ *
+ * Example: framameet.org
+ */
+export const MOBILIZON_INSTANCE_HOST = window.location.hostname;
+
+/**
+ * URL on which the API is. "/api" will be added at the end
+ *
+ * Required
+ *
+ * Example: https://framameet.org
+ */
+export const GRAPHQL_API_ENDPOINT =
+  import.meta.env.VITE_SERVER_URL ?? window.location.origin;
+
+/**
+ * URL with path on which the API is. Replaces GRAPHQL_API_ENDPOINT if used
+ *
+ * Optional
+ *
+ * Example: https://framameet.org/api
+ */
+export const GRAPHQL_API_FULL_PATH = `${GRAPHQL_API_ENDPOINT}/api`;