Removed bold from help header and leader text. (#1562)

Author: kmvanbrunt

cmd2/styles.py

@@ -62,8 +62,8 @@ class Cmd2Style(StrEnum):
 DEFAULT_CMD2_STYLES: dict[str, StyleType] = {
     Cmd2Style.COMMAND_LINE: Style(color=Color.CYAN, bold=True),
     Cmd2Style.ERROR: Style(color=Color.BRIGHT_RED),
-    Cmd2Style.HELP_HEADER: Style(color=Color.BRIGHT_GREEN, bold=True),
-    Cmd2Style.HELP_LEADER: Style(color=Color.CYAN, bold=True),
+    Cmd2Style.HELP_HEADER: Style(color=Color.BRIGHT_GREEN),
+    Cmd2Style.HELP_LEADER: Style(color=Color.CYAN),
     Cmd2Style.SUCCESS: Style(color=Color.GREEN),
     Cmd2Style.TABLE_BORDER: Style(color=Color.BRIGHT_GREEN),
     Cmd2Style.WARNING: Style(color=Color.BRIGHT_YELLOW),