Create a right-click menu

i am trying to create a right-click menu function. The point is by right-click on a property file it should show a new option in the context menu.

I tried the following code:
plugin.xml:

<idea-plugin>
    <!-- Plugin details -->
    <id>x.x.intellij.plugin</id>
    <name>x Translator Tool</name>
    <vendor>x</vendor>
    <description>This is a description of your plugin.This is a description of your plugin This is a description of your plugin</description> <!-- Add a valid description here -->


    <!-- Dependencies -->
    <depends>com.intellij.modules.platform</depends>
    <depends>org.jetbrains.compose.intellij.platform</depends>
    <depends>org.jetbrains.kotlin</depends>

    <actions>
        <!-- Add your actions here -->
        <action id="x.x.intellij.plugin.actions.TranslateAction"
                class="cx.x.intellij.plugin.actions.TranslateAction"
                text="Translate This File">
            <add-to-group group-id="ProjectViewPopupMenu" anchor="last"/>
        </action>
    </actions>

    <extensions defaultExtensionNs="com.intellij">
    </extensions>a
</idea-plugin>

in build.gradle:

import org.jetbrains.changelog.Changelog
import org.jetbrains.changelog.markdownToHTML

fun properties(key: String) = providers.gradleProperty(key)
fun environment(key: String) = providers.environmentVariable(key)

plugins {
    id("java") // Java support
    alias(libs.plugins.kotlin) // Kotlin support
    alias(libs.plugins.gradleIntelliJPlugin) // Gradle IntelliJ Plugin
    alias(libs.plugins.changelog) // Gradle Changelog Plugin
    alias(libs.plugins.qodana) // Gradle Qodana Plugin
    alias(libs.plugins.kover) // Gradle Kover Plugin
}

group = properties("pluginGroup").get()
version = properties("pluginVersion").get()

repositories {
    mavenCentral() // from settings.xml
}

kotlin {
    jvmToolchain(17)
}

intellij {
    pluginName = properties("pluginName")
    version = properties("platformVersion")
    type = properties("platformType")

    plugins = properties("platformPlugins").map { it.split(',').map(String::trim).filter(String::isNotEmpty) }
}

tasks {
    wrapper {
        gradleVersion = properties("gradleVersion").get()
    }

    patchPluginXml {
        version = properties("pluginVersion")
        sinceBuild = properties("pluginSinceBuild")
        untilBuild = properties("pluginUntilBuild")

        pluginDescription = providers.fileContents(layout.projectDirectory.file("README.md")).asText.map {
            val start = "<!-- Plugin description -->"
            val end = "<!-- Plugin description end -->"

            with (it.lines()) {
                if (!containsAll(listOf(start, end))) {
                    throw GradleException("Plugin description section not found in README.md:\n$start ... $end")
                }
                subList(indexOf(start) + 1, indexOf(end)).joinToString("\n").let(::markdownToHTML)
            }
        }

        val changelog = project.changelog // local variable for configuration cache compatibility
        // Get the latest available change notes from the changelog file
        changeNotes = properties("pluginVersion").map { pluginVersion ->
            with(changelog) {
                renderItem(
                    (getOrNull(pluginVersion) ?: getUnreleased())
                        .withHeader(false)
                        .withEmptySections(false),
                    Changelog.OutputType.HTML,
                )
            }
        }
    }
}

in src/package/TranslateAction:

package x.x.intellij.plugin.actions

import com.intellij.openapi.actionSystem.AnAction
import com.intellij.openapi.actionSystem.AnActionEvent
import com.intellij.openapi.actionSystem.CommonDataKeys
import com.intellij.openapi.ui.Messages

class TranslateAction : AnAction() {
    override fun actionPerformed(e: AnActionEvent) {
        Messages.showMessageDialog("Translate action executed!", "Translation", Messages.getInformationIcon())
    }
    override fun update(e: AnActionEvent) {
        super.update(e)

        // Enable the action only when right-clicking on the file "ResourceBundle"
        val file = e.getData(CommonDataKeys.PSI_FILE)
        e.presentation.isEnabled = file?.name == "ValidationMessages_de.properties"
    }
}

Is there a question hidden somewhere?
Especially a Gradle-related one.