Refactor to synchronous functions, update ts and vitest config

[fityannugroho]

PR Checklist

Please check if your PR fulfills the following requirements:

Put [x] to check

• I have read the documentation.
• I have read and followed the Contributing Guidelines.
• I have included a pull request description of my changes.
• I have included the necessary changes to the documentation.
• I have added tests to cover my changes.

PR Type

What kind of change does this PR introduce?

Please check any kind of changes that applies to this PR using [x]

• Bug fix
• Feature
• Code style update (formatting, local variables)
• Refactoring (no functional changes, no api changes)
• Build related changes
• CI related changes
• ..... (describe the other type)

What is the current behavior?

Please describe the current behavior that you are modifying, or link to a relevant issue.

Issue Number: N/A

Crash when trying to run the installed wisely:

TypeError [ERR_IMPORT_ASSERTION_TYPE_MISSING]: Module "file:///home/.../node_modules/wisely/charsets/latin.json" needs an import assertion of type "json"

What is the new behavior?

• Use fs.readFileSync and JSON.parse instead of dynamic import.
• Make wisely synchronous.
• Update tsconfig to use the "Next" (modern) configuration and remove resolveJsonModule.
• Remove unnecessary __dirname in vitest.config since it was handled by path.resolve.

Other information

This PR will be included in next patch release, since the v0.1.0 doesn't work at all and no one has used it yet.