Fix/add types and fix typos

[betrayalove]

PR Summary

Missing type annotations in many functions, which reduced type safety and could lead to runtime errors.
Usage of any type, which compromised the clarity and type security of the codebase.
Typos in variable names, which decreased code readability and could cause confusion.
The solution includes:

Addition of proper TypeScript types to all functions and their parameters.
Replacing any with more precise types like Contract, string, and boolean.
Correcting typos in variable names to improve code readability and prevent potential errors.

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Checklist

• There are breaking changes
• I've added/changed/removed ENV variable(s)
• I checked whether I should update the docs and did so by updating /docs

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Description

Key Changes:

1. Type Annotations Added:
   TypeScript types were added to functions that were previously missing type annotations. This includes functions dealing with contracts, strings, and boolean values.
2. Replacing any:
   All instances of the any type were replaced with more specific types like Contract, string, and boolean to enhance type safety and clarity.
3. Fixing Typos:
   Variable name typos were corrected (e.g., privider → provider), which improves code readability and reduces the risk of errors.
4. Improving Code Readability:
   The logic in certain functions was refactored for better readability and maintainability. The code is now more comprehensible and easier to work with, thanks to stricter typing and the correction of naming inconsistencies.

Reasons for the Changes:
These changes are necessary to improve the overall type safety of the codebase, enhance code readability, and prevent potential issues caused by missing type annotations or improper variable names.
Improving the maintainability of the code is crucial, especially as the project grows and more developers contribute to it.