Custom Tasklist Plugin on Camunda spring boot

Hello,

I use Camunda as a spring boot application.
Currently I am having trouble with a custom Plugin that I want to build.

It does not appear on the screen like in this tutorial.

The path where my plugin is located is:

C:\Users\Frank Castle\RepositoryOfFrank\ProjectOfFrank\src\main\resources\META-INF\webjars\camunda\app\cockpit\scripts

(which is the same folder as the config.js file)

my dependencies look like:

dependencies {
 
    implementation 'org.springframework.boot:spring-boot-starter'
    implementation 'org.springframework.boot:spring-boot-starter-web'
    implementation 'org.springframework.boot:spring-boot-starter-actuator'
    implementation 'org.springframework.boot:spring-boot-starter-data-jpa'
    implementation 'org.springframework.boot:spring-boot-starter-web-services'
    implementation 'org.springframework.boot:spring-boot-starter-mail:2.5.6'
   
    implementation 'org.camunda.bpm.springboot:camunda-bpm-spring-boot-starter:7.16.0'
    implementation 'org.camunda.bpm.springboot:camunda-bpm-spring-boot-starter-webapp:7.16.0'
    implementation 'org.camunda.bpm.springboot:camunda-bpm-spring-boot-starter-rest:7.16.0'
   
    implementation 'org.camunda.bpm.extension.springboot.gradle:camunda-bpm-spring-boot-webjar-gradle-plugin:2.2.0' 
    implementation 'org.camunda.bpm.webapp:camunda-webapp-webjar:7.16.0‘

What do I have to do to make it visible?

Appreciate all suggestions