Added first version of tab management

src/myfasthtml/controls/TabsManager.py

@@ -60,7 +60,7 @@ class Commands(BaseCommands):
   def show_tab(self, tab_id):
     return Command(f"{self._prefix}ShowTab",
                    "Activate or show a specific tab",
-                   self._owner.show_tab, tab_id).htmx(target=f"#{self._id}-content-controller", swap="outerHTML")
+                   self._owner.show_tab, tab_id).htmx(target=f"#{self._id}-controller", swap="outerHTML")
   
   def close_tab(self, tab_id):
     return Command(f"{self._prefix}CloseTab",
@@ -71,20 +71,10 @@ class Commands(BaseCommands):
     return (Command(f"{self._prefix}AddTab",
                     "Add a new tab",
                     self._owner.on_new_tab, label, component, auto_increment).
-            htmx(target=f"#{self._id}-content-controller"))
-  
-  def update_boundaries(self):
-    return Command(f"{self._prefix}UpdateBoundaries",
-                   "Update component boundaries",
-                   self._owner.update_boundaries).htmx(target=None)
+            htmx(target=f"#{self._id}-controller"))
 
 
 class TabsManager(MultipleInstance):
-  # Constants for width calculation
-  TAB_CHAR_WIDTH = 8  # pixels per character
-  TAB_PADDING = 40  # padding + close button space
-  TAB_MIN_WIDTH = 80  # minimum tab width
-  DROPDOWN_BTN_WIDTH = 40  # width of the dropdown button
   _tab_count = 0
   
   def __init__(self, session, _id=None):
@@ -264,8 +254,8 @@ class TabsManager(MultipleInstance):
   
   def _mk_tabs_controller(self):
     return Div(
-      Div(id=f"{self._id}-content-controller", data_active_tab=f"{self._state.active_tab}"),
-      Script(f'updateTabs("{self._id}-content-controller");'),
+      Div(id=f"{self._id}-controller", data_active_tab=f"{self._state.active_tab}"),
+      Script(f'updateTabs("{self._id}-controller");'),
     )
   
   def _mk_tabs_header(self, oob=False):