Fix Zoom to Fit

[mohdali]

Fix zoom to fit #48 by removing the fixed height of 1000 and setting the container with 100% height so the graph will always fit the containing space.

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Summary
This pull request seeks to address and refactor related flowchart components such as create-graph.ts, zoom-to-fit.ts, FlowchartDesigner.razor and FlowchartDesignerWrapper.razor to improve clarity and modularity of the code.

List of changes

• Removed duplicate height and width attributes from create-graph.ts
• Added minScale and maxScale attributes to zoom-to-fit.ts
• Changed width and height attributes on FlowchartDesigner.razor and FlowchartDesignerWrapper.razor from explicit values to 100%

Refactoring Target

• Split the FlowchartDesignerWrapper.razor components into separate components for read-only and non-read-only to make them more modular and reusable.
• Refactor the zoom-to-fit.ts to use ES6 object destructuring for better readability.
• Add comments to shallow functions to improve clarity.

[sfmskywalker]

Awesome! 🤩