Azure Portal function app not showing functions after deploy from VS Code

I have, for example, this function

I deployed it with VS Code using the following F1 option in VS Code

Nonetheless, when I go to the function app portal, it shows nothing under the functions submenu:

I don't know why I am not being able to see my functions in my function app, what am I missing?

Here is the dummy code of the function:

import azure.functions as func
import logging
import pymssql
from azure.identity import DefaultAzureCredential
from azure.keyvault.secrets import SecretClient
from datetime import datetime, timedelta
import json
import jwt

app = func.FunctionApp(http_auth_level=func.AuthLevel.ANONYMOUS)

@app.route(
    route="actualizar_contrasena", methods=["POST"], auth_level=func.AuthLevel.ANONYMOUS
)
def actualizar_contrasena(req: func.HttpRequest) -> func.HttpResponse:
   
    try:
        # Establece la conexión
        conn = pymssql.connect(X, XX, XXX, XXXX)
        cursor = conn.cursor()
        email = auth_token.get("email")
        
        if email and password:
            # do things
        else:
            return func.HttpResponse(f"Error", status_code=500)

    except Exception as e:
        logging.error(f"Error: {e}")
        return func.HttpResponse(f"Error: {e}", status_code=500)
    finally:
        if "conn" in locals() and conn:
            conn.close()

    return func.HttpResponse(
        "Elemento eliminado correctamente",
        status_code=200,
    )

UPDATE

After following @RithwikBoj instructions, I'm in the same situation. I have observed that locally I can't see the functions neither:

This is my host.json:

{
  "version": "2.0",
  "extensions": {
    "http": {
      "routePrefix": ""
    }
  },
  "logging": {
    "applicationInsights": {
      "samplingSettings": {
        "isEnabled": true,
        "excludedTypes": "Request"
      }
    }
  },
  "extensionBundle": {
    "id": "Microsoft.Azure.Functions.ExtensionBundle",
    "version": "[4.*, 5.0.0)"
  }
}

And this is my structure:

root
|_.venv
|_.funcignore
|_host.json
|_function_app.py
|_ local.settings.json
|_gets
   |__ __init__.py
   |__  function_app.py
   |__  function.json

I have used below code and it got deployed for me and followed below process:

function_app.py:

import azure.functions as func
import logging as ri_lg
import pymssql as chop
from azure.identity import DefaultAzureCredential
from azure.keyvault.secrets import SecretClient

rith = func.FunctionApp(http_auth_level=func.AuthLevel.ANONYMOUS)

@rith.route(
    route="rith_func", methods=["POST"], auth_level=func.AuthLevel.ANONYMOUS
)
def rith_func(req: func.HttpRequest) -> func.HttpResponse:
    try:
        rith_rq_bdy = req.get_json()
        eml = rith_rq_bdy.get("email")
        pwd = rith_rq_bdy.get("password")
        ri_con = chop.connect(server="rithwik.database.windows.net",user="rithwik",password="RTestpass@2",database="test1")
        cho_cur = ri_con.cursor()
        cho_cur.execute("UPDATE users SET password = %s WHERE email = %s",(pwd, eml))
        ri_con.commit()

        return func.HttpResponse("Hello Rithwik, the Password has been updated",status_code=200)

    except Exception as f:
        ri_lg.error(f"Error: {f}")
        return func.HttpResponse(f"Hello Rithwik, there is an error: {f}",status_code=500)
    finally:
        if "ri_con" in locals() and ri_con:
            ri_con.close()

local.settings.json:

{
  "IsEncrypted": false,
  "Values": {
    "AzureWebJobsStorage": "",
    "FUNCTIONS_WORKER_RUNTIME": "python",
    "AzureWebJobsFeatureFlags": "EnableWorkerIndexing"
  }
}

requirements.txt:

azure-functions
pymssql
azure-identity
azure-keyvault-secrets

host.json:

{
  "version": "2.0",
  "logging": {
    "applicationInsights": {
      "samplingSettings": {
        "isEnabled": true,
        "excludedTypes": "Request"
      }
    }
  },
  "extensionBundle": {
    "id": "Microsoft.Azure.Functions.ExtensionBundle",
    "version": "[4.*, 5.0.0)"
  }
}

Structure:

RithAppFolder
├── __ pycache __
├── .venv
├── .vscode
├── .funcignore
├── .gitignore
├── function_app.py
├── host.json
├── local.settings.json
└── requirements.txt

Output:

Deployed from VS Code:

After Deployment:

Then tested with wrong data to get 500 error:

Make sure to add all the packages.