Add favicon to the app

Agent-Logs-Url: https://github.com/christianlouis/dmarq/sessions/d5386c25-5b4f-4f21-8537-ae2d0fc06c04

Co-authored-by: christianlouis <361235+christianlouis@users.noreply.github.com>

backend/app/main.py

@@ -5,7 +5,7 @@ from datetime import datetime
 
 from fastapi import Depends, FastAPI, Request
 from fastapi.middleware.cors import CORSMiddleware
-from fastapi.responses import HTMLResponse
+from fastapi.responses import FileResponse, HTMLResponse
 from fastapi.staticfiles import StaticFiles
 from fastapi.templating import Jinja2Templates
 
@@ -369,6 +369,11 @@ async def index(request: Request):
     return templates.TemplateResponse(request, "index.html")
 
 
+@app.get("/favicon.ico", include_in_schema=False)
+async def favicon():
+    return FileResponse(os.path.join(os.path.dirname(__file__), "static", "img", "favicon.ico"))
+
+
 # Individual page routes
 @app.get("/dashboard", response_class=HTMLResponse)
 async def dashboard(request: Request):