chore: Use emoji markup as proposed in rich (#1089)

Instead of using the direct emoji, let's change it to the markup one.
However, it does not fix the issue in width in ipython.

skore/src/skore/sklearn/_estimator/metrics_accessor.py

@@ -42,7 +42,7 @@ class _MetricsAccessor(_BaseAccessor, DirNamesMixin):
     }
 
     def __init__(self, parent):
-        super().__init__(parent, icon="📏")
+        super().__init__(parent, icon=":straight_ruler:")
 
     # TODO: should build on the `add_scorers` function
     def report_metrics(
@@ -796,7 +796,7 @@ def _create_help_tree(self):
         tree = super()._create_help_tree()
 
         # Add plot methods in a separate branch
-        plot_branch = tree.add("[bold cyan].plot 🎨[/bold cyan]")
+        plot_branch = tree.add("[bold cyan].plot :art:[/bold cyan]")
         plot_methods = self.plot._get_methods_for_help()
         plot_methods = self.plot._sort_methods_for_help(plot_methods)
 
@@ -829,7 +829,7 @@ class _PlotMetricsAccessor(_BaseAccessor):
     """Plotting methods for the metrics accessor."""
 
     def __init__(self, parent):
-        super().__init__(parent._parent, icon="🎨")
+        super().__init__(parent._parent, icon=":art:")
         self._metrics_parent = parent
 
     def _get_display(

skore/src/skore/sklearn/_estimator/report.py

@@ -67,10 +67,10 @@ class EstimatorReport(_HelpMixin, DirNamesMixin):
     """
 
     _ACCESSOR_CONFIG = {
-        "metrics": {"icon": "📏", "name": "metrics"},
+        "metrics": {"icon": ":straight_ruler:", "name": "metrics"},
         # Add other accessors as they're implemented
-        # "inspection": {"icon": "🔍", "name": "inspection"},
-        # "linting": {"icon": "✔️", "name": "linting"},
+        # "inspection": {"icon": ":magnifying_glass:", "name": "inspection"},
+        # "linting": {"icon": ":check:", "name": "linting"},
     }
 
     @staticmethod
@@ -338,7 +338,7 @@ def _get_cached_response_values(
 
     def _get_help_panel_title(self):
         return (
-            f"[bold cyan]📓 Tools to diagnose estimator "
+            f"[bold cyan]:notebook: Tools to diagnose estimator "
             f"{self.estimator_name}[/bold cyan]"
         )
 

skore/src/skore/sklearn/_plot/utils.py

@@ -66,8 +66,8 @@ def _create_help_panel(self):
         return Panel(
             self._create_help_tree(),
             title=(
-                f"[bold cyan]📊 {self.__class__.__name__} for {self.estimator_name}"
-                "[/bold cyan]"
+                f"[bold cyan]:bar_chart: {self.__class__.__name__} for "
+                f"{self.estimator_name}[/bold cyan]"
             ),
             border_style="orange1",
             expand=False,