Add landing page

app/routes.py

@@ -3,6 +3,7 @@ from io import StringIO
 import io
 from flask import Blueprint, Response, make_response, render_template, redirect, request, send_file, url_for, flash
 from werkzeug.security import generate_password_hash, check_password_hash
+from werkzeug.http import http_date
 from app.models import Profile, Reading, db, User
 from app.forms import DeleteForm, LoginForm, ProfileForm, ReadingForm, SignupForm
 from flask_login import login_user, login_required, current_user, logout_user
@@ -46,8 +47,11 @@ def logout():
     flash('You have been logged out.', 'success')
     return redirect(url_for('auth.login'))  # Redirect to login page or home page
 
+@main.route('/', methods=['GET'])
+def landing():
+    return render_template('landing.html')
 
-@main.route('/', methods=['GET', 'POST'])
+@main.route('/dashboard', methods=['GET', 'POST'])
 @login_required
 def dashboard():
     # Default values
@@ -245,8 +249,10 @@ def profile_image(user_id):
         image_data = base64.b64decode(profile.profile_pic)
         response = make_response(image_data)
         response.headers.set('Content-Type', 'image/jpeg')
-        # Cache for 1 day
-        response.headers.set('Cache-Control', 'public, max-age=86400')
+        response.headers.set('Cache-Control', 'public, max-age=86400')  # Cache for 1 day
+        response.headers.set('ETag', str(hash(profile.profile_pic)))  # Unique ETag for the image
+        response.headers.set('Last-Modified', http_date(datetime.utcnow().timestamp()))
+
         return response
     else:
         # Serve the default SVG if no profile picture is found