NodeToolbar Feature Implementation and Dialog UI Migration (#462)

Description
This pull request implements the NodeToolbar feature and migrates the
dialog UI to shadCN. The NodeToolbar introduces three actions:
duplicate, delete, and edit. The edit action allows users to modify the
advanced configuration of the tools. Additionally, this pull request
migrates the dialog UI to shadCN, specifically updating the prompt
dialog, code dialog, export dialog, python functions dialog and
tooltips. These enhancements improve the user experience and provide a
more efficient and modern interface.

Changes Made
Added NodeToolbar component to the application.
Implemented duplicate functionality, allowing users to create copies of
the selected nodes.
Implemented delete functionality, enabling users to remove selected
nodes.
Implemented edit functionality, providing users with the ability to
modify the advanced configuration of the tools.
Migrated the prompt dialog UI to shadCN, improving its appearance and
functionality.
Migrated the code dialog UI to shadCN, enhancing its usability and
aesthetics.
Migrated the export dialog UI to shadCN, resulting in a more streamlined
and intuitive interface.
Migrated the python functions dialog UI to shadCN, ensuring consistency
with the rest of the application's design.
Migrated the headlessUI tooltip to shadCN.

FYI: Need to improve the dialog subtitles texts.