feat: add method to set full height to image

Close #5

src/main/java/com/flowingcode/vaadin/addons/imagecrop/ImageCrop.java

@@ -46,7 +46,10 @@
 @JsModule("./src/image-crop.tsx")
 @Tag("image-crop")
 @CssImport("react-image-crop/dist/ReactCrop.css")
+@CssImport("./styles/image-crop-styles.css")
 public class ImageCrop extends ReactAdapterComponent {
+
+  private static final String IMG_FULL_HEIGHT_CLASS_NAME = "img-full-height";
 
   private String croppedImageDataUri;
 
@@ -341,6 +344,21 @@ public String getCroppedImageDataUri() {
     return this.croppedImageDataUri;
   }
 
+  /**
+   * Sets the image to occupy the full viewport height when enabled.
+   * If {@code fullHeight} is {@code true}, applies a CSS class that
+   * sets the image height to 100vh. If {@code false}, removes the class
+   * to revert to the default height.
+   *
+   * @param fullHeight whether the image should fill the viewport height
+   */
+  public void setImageFullHeight(Boolean fullHeight) {
+    if (fullHeight)
+      this.addClassName(IMG_FULL_HEIGHT_CLASS_NAME);
+    else
+      this.removeClassName(IMG_FULL_HEIGHT_CLASS_NAME);
+  }
+
   /**
    * Decodes the cropped image data URI and returns it as a byte array. If the image data URI is not
    * in the format "data:image/*;base64,", it will be decoded assuming it is a Base64 encoded

src/main/resources/META-INF/frontend/styles/image-crop-styles.css

@@ -0,0 +1,23 @@
+/*-
+ * #%L
+ * Image Crop Add-on
+ * %%
+ * Copyright (C) 2024 Flowing Code
+ * %%
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * #L%
+ */
+
+.img-full-height img {
+    height: 100vh;
+};