feat: better expandable textarea - field sizing (#1149)

Author: lukasvinclav

src/unfold/static/unfold/css/styles.css

@@ -4,6 +4,11 @@
 
 @tailwind utilities;
 
+@layer utilities {
+  .field-sizing-content {
+      field-sizing: content;
+  }
+}
 
 /*******************************************************
  Classes

src/unfold/styles.css

@@ -104,12 +104,8 @@
 ]
 
 TEXTAREA_EXPANDABLE_CLASSES = [
-    "absolute",
-    "bottom-0",
-    "left-0",
-    "right-0",
-    "top-0",
-    "h-full",
+    "field-sizing-content",
+    "!max-w-2xl",
 ]
 
 SELECT_CLASSES = [
@@ -472,9 +468,7 @@ def __init__(self, attrs: Optional[dict[str, Any]] = None) -> None:
         )
 
 
-class UnfoldAdminExpandableTextareaWidget(AdminTextareaWidget):
-    template_name = "unfold/widgets/textarea_expandable.html"
-
+class UnfoldAdminExpandableTextareaWidget(UnfoldAdminTextareaWidget):
     def __init__(self, attrs: Optional[dict[str, Any]] = None) -> None:
         attrs = attrs or {}