Reduce client cold-start by optimizing bundle size

[Ivenkili]

closes #1094

Summary

This PR reduces the client application's initial JavaScript bundle to improve cold-start performance.

Changes

• Audited the client bundle using a bundle analyzer.
• Lazy-loaded heavy components with dynamic imports.
• Reduced unnecessary JavaScript shipped on the initial page load.
• Improved tree shaking by optimizing imports.
• Split heavy routes into separate chunks.
• Removed unused code where applicable.

Performance

Before

Initial JS:

• xxx KB

Largest chunk:

• xxx KB

After

Initial JS:

• xxx KB

Largest chunk:

• xxx KB

Reduction:

• xx%

Testing

• Application builds successfully.
• All affected routes load correctly.
• Dynamic imports function as expected.
• No regression observed.

Closes #1094

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