Diagram python op

[aaronchongth]

New feature implementation

Related to #167

Implemented feature

• script environment manager
  • create, edit, delete script environments
  • highlight script nodes using a specific script environment
  • prevents deletion of script environments if script nodes are using the environment
  • script editor (added react-codemirror as dependency)
  • reads what script builders are available, also reads language and default script, for now only python is supported
• script node
  • selection of script environment
  • added exporting and connections
• added a context for handling notifications, to provide some feedback when users create, edit or delete script environments. We can migrate error notifications to this, in the future. Keeping this PR easier to review for now
• minor linting

Discussion points

• only supporting python for now, as each language support is an additional dep to the frontend. It is described in a tooltip for now

python.mp4

GenAI Use

We follow OSRA's policy on GenAI tools

• I used a GenAI tool in this PR.
• I did not use GenAI

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