replace stale web_editor with html_editor and html_builder for 19.0

web_editor was removed in Odoo 19.0 and replaced by html_editor
and html_builder. The old web_editor was incorrectly included in
the 19.0 vanilla import.

🤖 assisted by claude

odoo-bringout-oca-ocb-html_builder/html_builder/static/tests/drop_zone.test.js

@@ -0,0 +1,39 @@
+import {
+    setupHTMLBuilder,
+    waitForEndOfOperation,
+    confirmAddSnippet,
+} from "@html_builder/../tests/helpers";
+import { describe, expect, test } from "@odoo/hoot";
+import { contains } from "@web/../tests/web_test_helpers";
+
+describe.current.tags("desktop");
+
+const dropzone = (hovered = false) => {
+    const highlightClass = hovered ? " o_dropzone_highlighted" : "";
+    return `<div class="oe_drop_zone oe_insert${highlightClass}" data-editor-message-default="true" data-editor-message="DRAG BUILDING BLOCKS HERE"></div>`;
+};
+
+test("wrapper element has the 'DRAG BUILDING BLOCKS HERE' message", async () => {
+    const { contentEl } = await setupHTMLBuilder("");
+    expect(contentEl).toHaveAttribute("data-editor-message", "DRAG BUILDING BLOCKS HERE");
+});
+
+test("drop beside dropzone inserts the snippet", async () => {
+    const { contentEl } = await setupHTMLBuilder();
+    const { moveTo, drop } = await contains(
+        ".o-snippets-menu #snippet_groups .o_snippet_thumbnail"
+    ).drag();
+    await moveTo(contentEl.ownerDocument.body);
+    // The dropzone is not hovered, so not highlighted.
+    expect(contentEl).toHaveInnerHTML(dropzone());
+    await drop();
+    await confirmAddSnippet();
+    expect(".o_add_snippet_dialog").toHaveCount(0);
+    await waitForEndOfOperation();
+    expect(contentEl)
+        .toHaveInnerHTML(`<section class="s_test" data-snippet="s_test" data-name="Test">
+    <div class="test_a o-paragraph">
+        <br>
+    </div>
+</section>`);
+});