How to use a dependency that I imported with Maven?

I added this dependency to my project so I could use the WebClient class:

<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-webflux</artifactId>
<version>2.3.2.RELEASE</version>
</dependency>

I ran mvn clean install -U and it download the dependency successfully. Then I closed IntelliJ and opened it again. The IDE recognized the dependency smoothly. However, I can't figure out how to actually use it in my code...

If I do: WebClient webClient = new WebClient(); it just complains that it cannot resolve symbol "WebClient", it doesn't suggest me to import it. I tried importing manually with import org.springframework.boot.*;, but still doesn't recognize the symbol. Any tips on how I fix this?

module-info.java

module org.openjfx {
    requires javafx.controls;
    requires javafx.fxml;
    requires java.sql;

    opens agill.deshopp to javafx.fxml;
    opens agill.deshopp.controllers to javafx.fxml;
    opens agill.deshopp.components to javafx.fxml;

    exports agill.deshopp;
}

pom.xml

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>agill.deshopp</groupId>
<artifactId>app</artifactId>
<version>1.0-SNAPSHOT</version>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.release>11</maven.compiler.release>
<javafx.version>13</javafx.version>
</properties>
<dependencies>
<dependency>
<groupId>org.openjfx</groupId>
<artifactId>javafx-controls</artifactId>
<version>${javafx.version}</version>
</dependency>
<dependency>
<groupId>org.openjfx</groupId>
<artifactId>javafx-fxml</artifactId>
<version>${javafx.version}</version>
</dependency>
<dependency>
<groupId>org.xerial</groupId>
<artifactId>sqlite-jdbc</artifactId>
<version>3.32.3</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-webflux</artifactId>
<version>2.3.2.RELEASE</version>
</dependency>
<dependency>
<groupId>org.projectreactor</groupId>
<artifactId>reactor-spring</artifactId>
<version>1.0.1.RELEASE</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.8.1</version>
<configuration>
<release>${maven.compiler.release}</release>
</configuration>
</plugin>
<plugin>
<groupId>org.openjfx</groupId>
<artifactId>javafx-maven-plugin</artifactId>
<version>0.0.3</version>
<configuration>
<mainClass>agill.deshopp.App</mainClass>
</configuration>
</plugin>
</plugins>
</build>
</project>

Click on the synchronise button in maven plugin on right hand side in intellij. The first Button you can see in picture.
<img src="https://i.stack.imgur.com/ZQG7M.png" width="600">
<br>
https://i.stack.imgur.com/ZQG7M.png