[FIX] web: kanban correct display of field without widget block mode

Have a kanban arch with a field in display full in the kanban card template
```<field name="fieldName" display="full" />```

Before this commit, the class that should endup in the DOM was wrongly computed.
Technically, it was quoted in the owl template as if we passed it to a Component.

After this commit, a field having display="full" is correctly rendered.

X-original-commit: 526eb4f875ec6736d4b76da1fbdbcc99a8c33a9b
Part-of: odoo/odoo#104019

addons/web/static/src/views/kanban/kanban_compiler.js

@@ -38,7 +38,8 @@ export class KanbanCompiler extends ViewCompiler {
                 doNotCopyAttributes: true,
             },
             {
-                selector: ".dropdown-toggle:not(.kanban_ignore_dropdown),.o_kanban_manage_toggle_button",
+                selector:
+                    ".dropdown-toggle:not(.kanban_ignore_dropdown),.o_kanban_manage_toggle_button",
                 fn: this.compileDropdownToggler,
                 doNotCopyAttributes: true,
             },
@@ -231,7 +232,9 @@ export class KanbanCompiler extends ViewCompiler {
      */
     compileField(el, params) {
         let compiled;
+        let isSpan = false;
         if (!el.hasAttribute("widget")) {
+            isSpan = true;
             // fields without a specified widget are rendered as simple spans in kanban records
             const fieldName = el.getAttribute("name");
             compiled = createElement("span", { "t-out": `record["${fieldName}"].value` });
@@ -252,7 +255,10 @@ export class KanbanCompiler extends ViewCompiler {
             classNames.push("o_text_bold");
         }
         if (classNames.length > 0) {
-            compiled.setAttribute("class", toStringExpression(classNames.join(" ")));
+            const clsFormatted = isSpan
+                ? classNames.join(" ")
+                : toStringExpression(classNames.join(" "));
+            compiled.setAttribute("class", clsFormatted);
         }
         const attrs = {};
         for (const attr of el.attributes) {

addons/web/static/tests/views/kanban_view_tests.js

@@ -361,6 +361,25 @@ QUnit.module("Views", (hooks) => {
         assert.containsOnce(target, ".o_kanban_record:contains(gnap)");
     });
 
+    QUnit.test("display full is supported on fields", async (assert) => {
+        await makeView({
+            type: "kanban",
+            resModel: "partner",
+            serverData,
+            arch: `
+                <kanban class="o_kanban_test">
+                    <templates><t t-name="kanban-box">
+                        <div>
+                            <field name="foo" display="full"/>
+                        </div>
+                    </t></templates>
+                </kanban>`,
+        });
+
+        assert.containsOnce(target.querySelector(".o_kanban_record"), "span.o_text_block");
+        assert.strictEqual(target.querySelector("span.o_text_block").textContent, "yop");
+    });
+
     QUnit.test("basic grouped rendering", async (assert) => {
         assert.expect(13);