refactor(tangle-dapp): Cleanup legacy code & re-organize project

[yurixander]

Summary of changes

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• 🔧 Removed a bunch of unused components & containers.
• 🔧 Re-organized project structure to match group by feature.
• 🔧 Refactored a lot of components to avoid using barrel exports & types.ts files to cut down on file count.

Proposed area of change

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• apps/tangle-dapp
• apps/tangle-cloud
• libs/tangle-shared-ui
• libs/webb-ui-components

Associated issue(s)

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• Closes [TASK] Cleanup legacy code #2682

Screen Recording

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