feat: Use globalThis

[yagopv]

What it solves?

Resolves safe-global/safe-apps-sdk#292

How this is solved?

We are adding globalThis prop to the webpack config as the default self in the compiled files is causing problems with SSR solutions as NextJS

[github-actions]

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Type	Occurrences	Fixable
Errors	0	0
Warnings	0	0
Ignored	0	N/A

• Result: ✅ success
• Annotations: 0 total

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^{Report generated by eslint-plus-action}