add pretty_exceptions_width in Typer class

add `pretty_exceptions_width` in typer class to be used by
`DeveloperConfigException` to allow setting width of traceback
boxes.

Author: indiVar0508

typer/main.py

@@ -75,6 +75,7 @@ def except_hook(
             exc.__traceback__,
             show_locals=exception_config.pretty_exceptions_show_locals,
             suppress=supress_internal_dir_names,
+            width=exception_config.pretty_exceptions_width,
         )
         console_stderr.print(rich_tb)
         return
@@ -139,13 +140,15 @@ def __init__(
         pretty_exceptions_enable: bool = True,
         pretty_exceptions_show_locals: bool = True,
         pretty_exceptions_short: bool = True,
+        pretty_exceptions_width: int = 100,
     ):
         self._add_completion = add_completion
         self.rich_markup_mode: MarkupMode = rich_markup_mode
         self.rich_help_panel = rich_help_panel
         self.pretty_exceptions_enable = pretty_exceptions_enable
         self.pretty_exceptions_show_locals = pretty_exceptions_show_locals
         self.pretty_exceptions_short = pretty_exceptions_short
+        self.pretty_exceptions_width = pretty_exceptions_width
         self.info = TyperInfo(
             name=name,
             cls=cls,
@@ -323,6 +326,7 @@ def __call__(self, *args: Any, **kwargs: Any) -> Any:
                     pretty_exceptions_enable=self.pretty_exceptions_enable,
                     pretty_exceptions_show_locals=self.pretty_exceptions_show_locals,
                     pretty_exceptions_short=self.pretty_exceptions_short,
+                    pretty_exceptions_width=self.pretty_exceptions_width,
                 ),
             )
             raise e