text: Title: Better default height for metrics property
  Body: ### Description
  
  The height of a metric is taking more than half the available height of my page. This will never be a correct value. (I would also argue the same for the width) A new default height should be defined.
  
  ```python
  from taipy.gui import Gui
  import taipy.gui.builder as tgb
  
  value = 50
  
  with tgb.Page() as page:
      tgb.metric("{value}", type="none")
  
  Gui(page=page).run(title="Frontend Demo")
  
  ```
  
  
  ![image](https://github.com/user-attachments/assets/7d8f4e90-0575-4098-bb5d-da025a50b20b)
  
  
  ### Acceptance Criteria
  
  - [ ] Any new code is covered by a unit tested.
  - [ ] Check code coverage is at least 90%.
  
  
  ### Code of Conduct
  
  - [X] I have checked the [existing issues](https://github.com/Avaiga/taipy/issues?q=is%3Aissue+).
  - [ ] I am willing to work on this issue (optional)