Add express.static() to serve semi-static files

+ Should be user-updateable in the future

src/app.ts

@@ -11,6 +11,7 @@ import roleSchemaRouter from "./Routes/role_schema.routes";
 import defaultErrorHandler from "./Middleware/error/handler";
 import logger from "./Middleware/error/logger";
 import debugLogger from "./Middleware/debug/logger";
+import mediaRouter from "./Routes/media.routes";
 
 // Set up async error handling
 require("express-async-errors");
@@ -51,6 +52,7 @@ async function main() {
 
   app.use("/api/admins", adminRouter);
 
+<<<<<<< HEAD
   app.use("/api/organisations", organisationRouter);
 
   app.use("/api/groups", groupRouter);
@@ -61,6 +63,9 @@ async function main() {
 
   // Error handling
   app.use(defaultErrorHandler); // Not working
+=======
+  app.use("/api/media", mediaRouter);
+>>>>>>> Add express.static() to serve semi-static files
 
   app.listen(process.env.PORT, () => {
     logger.info(`Listening on port ${process.env.PORT}`);