fix(gui): parent project section labels to main frame

Prevent Tk labelwidget parent mismatches in project
opener/creator windows by creating section labels with
self.main_frame as parent.

Author: amilcarlucas

ardupilot_methodic_configurator/frontend_tkinter_project_creator.py

@@ -92,7 +92,7 @@ def create_option1_widgets(  # pylint: disable=too-many-locals,too-many-argument
         connected_fc_vehicle_type: str,
     ) -> None:
         # Option 1 - Create a new vehicle configuration directory based on an existing template
-        option1_label = ttk.Label(text=_("New vehicle"), style="Bold.TLabel")
+        option1_label = ttk.Label(self.main_frame, text=_("New vehicle"), style="Bold.TLabel")
         option1_label_frame = ttk.LabelFrame(self.main_frame, labelwidget=option1_label)
         option1_label_frame.pack(expand=True, fill=tk.X, padx=6, pady=6)
         template_dir_edit_tooltip = _(

ardupilot_methodic_configurator/frontend_tkinter_project_opener.py

@@ -82,7 +82,7 @@ def close_and_quit(self) -> None:
 
     def create_option1_widgets(self) -> None:
         # Option 1 - Create a new vehicle configuration directory based on an existing template
-        option1_label = ttk.Label(text=_("New vehicle"), style="Bold.TLabel")
+        option1_label = ttk.Label(self.main_frame, text=_("New vehicle"), style="Bold.TLabel")
         option1_label_frame = ttk.LabelFrame(self.main_frame, labelwidget=option1_label)
         option1_label_frame.pack(expand=True, fill=tk.X, padx=6, pady=6)
 
@@ -112,7 +112,7 @@ def on_bin_log_selected(bin_file: str) -> None:
 
     def create_option2_widgets(self, initial_dir: str) -> None:
         # Option 2 - Use an existing vehicle configuration directory
-        option2_label = ttk.Label(text=_("Open vehicle"), style="Bold.TLabel")
+        option2_label = ttk.Label(self.main_frame, text=_("Open vehicle"), style="Bold.TLabel")
         option2_label_frame = ttk.LabelFrame(self.main_frame, labelwidget=option2_label)
         option2_label_frame.pack(expand=True, fill=tk.X, padx=6, pady=6)
         option2_label = ttk.Label(
@@ -140,7 +140,7 @@ def on_vehicle_directory_selected(directory: str) -> None:
 
     def create_option3_widgets(self) -> None:
         # Option 3 - Open the last used vehicle configuration directory
-        option3_label = ttk.Label(text=_("Re-Open vehicle"), style="Bold.TLabel")
+        option3_label = ttk.Label(self.main_frame, text=_("Re-Open vehicle"), style="Bold.TLabel")
         option3_label_frame = ttk.LabelFrame(self.main_frame, labelwidget=option3_label)
         option3_label_frame.pack(expand=True, fill=tk.X, padx=6, pady=6)