Add new features and updates to dibujar.py and pygwalker_visualizaciones.py

- Introduced a new markdown cell in dibujar.py to enhance user guidance for drawing with the mouse.
- Updated the version in pygwalker_visualizaciones.py from 0.15.1 to 0.15.2.
- Added a new markdown cell in pygwalker_visualizaciones.py for interactive EDA with PyGWalker.
- Refactored return values in pygwalker_visualizaciones.py to streamline data handling.
- Modified Graficos_plotly.grid.json to include additional layout positions.

Graficos_plotly.py

@@ -9,8 +9,19 @@ app = marimo.App(
 
 @app.cell
 def _():
-    # Cell 1: gráfico Plotly (reactivo)
     import marimo as mo
+    return (mo,)
+
+
+@app.cell(hide_code=True)
+def _(mo):
+    mo.md(r""" # Plotly: Graficos interactivos con plotly""")
+    return
+
+
+@app.cell
+def _(mo):
+    # Cell 1: gráfico Plotly (reactivo)
     import pandas as pd
     import plotly.express as px
     import numpy as np
@@ -28,7 +39,7 @@ def _():
 
     plot = mo.ui.plotly(fig)  # Solo scatter/treemap/sunburst soportan selección reactiva
     plot
-    return df, mo, np, pd, plot, px
+    return df, np, pd, plot, px
 
 
 @app.cell