Add ui::table (#20447)

This PR adds the `ui::Table` component.

It has a rather simple API, but cells can contain either strings or
elements, allowing for some complex uses.

Example usage:

```rust
Table::new(vec!["Product", "Price", "Stock"])
    .width(px(600.))
    .striped()
    .row(vec!["Laptop", "$999", "In Stock"])
    .row(vec!["Phone", "$599", "Low Stock"])
    .row(vec!["Tablet", "$399", "Out of Stock"])
```

For more complex use cases, the table supports mixed content:

```rust
Table::new(vec!["Status", "Name", "Priority", "Deadline", "Action"])
    .width(px(840.))
    .row(vec![
        element_cell(Indicator::dot().color(Color::Success).into_any_element()),
        string_cell("Project A"),
        string_cell("High"),
        string_cell("2023-12-31"),
        element_cell(Button::new("view_a", "View").style(ButtonStyle::Filled).full_width().into_any_element()),
    ])
    // ... more rows
```

Preview:

![CleanShot 2024-11-08 at 20 53
04@2x](https://github.com/user-attachments/assets/b39122f0-a29b-423b-8e24-86ab4c42bac2)

This component is pretty basic, improvements are welcome!

Release Notes:

- N/A

crates/ui/src/components/button/button.rs

@@ -445,7 +445,7 @@ impl ComponentPreview for Button {
 
     fn examples() -> Vec<ComponentExampleGroup<Self>> {
         vec![
-            example_group(
+            example_group_with_title(
                 "Styles",
                 vec![
                     single_example("Default", Button::new("default", "Default")),
@@ -463,7 +463,7 @@ impl ComponentPreview for Button {
                     ),
                 ],
             ),
-            example_group(
+            example_group_with_title(
                 "Tinted",
                 vec![
                     single_example(
@@ -488,7 +488,7 @@ impl ComponentPreview for Button {
                     ),
                 ],
             ),
-            example_group(
+            example_group_with_title(
                 "States",
                 vec![
                     single_example("Default", Button::new("default_state", "Default")),
@@ -502,7 +502,7 @@ impl ComponentPreview for Button {
                     ),
                 ],
             ),
-            example_group(
+            example_group_with_title(
                 "With Icons",
                 vec![
                     single_example(