Books list: make the buttons work like in the form

internal/apitest/search_book_test.go

@@ -42,13 +42,14 @@ func TestSearchBook_OneBookRead(t *testing.T) {
 	assert.Equal(t, int64(1), result.Count)
 	assert.Equal(t,
 		[]dto.BookSearchGetBook{{
-			Title:     "Les dieux ont soif",
-			Author:    "Anatole France",
-			ID:        4,
-			Rating:    7,
-			Read:      true,
-			WantRead:  false,
-			CoverPath: "/static/bookcover/lesdieuxontsoif.jpg",
+			Title:         "Les dieux ont soif",
+			Author:        "Anatole France",
+			ID:            4,
+			Rating:        7,
+			Read:          true,
+			StartReadDate: "2026-01-30",
+			WantRead:      false,
+			CoverPath:     "/static/bookcover/lesdieuxontsoif.jpg",
 		}},
 		result.Books)
 }
@@ -58,14 +59,14 @@ func TestSearchBook_OneBookStartRead(t *testing.T) {
 	assert.Equal(t, int64(1), result.Count)
 	assert.Equal(t,
 		[]dto.BookSearchGetBook{{
-			Title:     "Recherches philosophiques",
-			Author:    "Ludwig Wittgenstein",
-			ID:        30,
-			Rating:    0,
-			Read:      false,
-			StartRead: true,
-			WantRead:  false,
-			CoverPath: "/static/bookcover/Recherches-philosophiques.jpg",
+			Title:         "Recherches philosophiques",
+			Author:        "Ludwig Wittgenstein",
+			ID:            30,
+			Rating:        0,
+			Read:          false,
+			StartReadDate: "2025-11-22",
+			WantRead:      false,
+			CoverPath:     "/static/bookcover/Recherches-philosophiques.jpg",
 		}},
 		result.Books)
 }