Bootstrap not picking up in node.js express.js project

I have a project in which I have installed ejs and bootstrap but for some reason bootstrap is still not picking up. In my app.js file I have:

app.use(express.static("node_modulesbootstrapdistcss"));

Index.html file:

<html>
    <head>
        <link href="bootstrap.min.css" rel="stylesheet" />
        <style>
            .nav-separator {
                border-left: 1px solid rgba(0, 0, 0, 0.2); /* Light gray border */
                height: 30px; /* Adjust height as needed */
                margin: 0 15px; /* Spacing around the line */
            }
        </style>
        <title>Home</title>
    </head>
    <%- include('partials/navbar') %>
    <div class="container">
        <!-- Your page content goes here -->
        <h3>Welcome to Ando's Delivery Services!</h3>
    </div>
    </body>
</html>

I have made sure that the path in app.js is the relative path for bootstrap. I have also changed it so that the nav-bar is not in a seperate file and included in the index.html file and it still will not pick up the bootstrap.