chore: enable typescript error on unused locals

[armano2]

Enable typescript compiler flags for catchign unused locals and unreachable code

i was also thinking about noUnusedParameters but i'm not sure about this one for now

Motivation and Context

How Has This Been Tested?

Checklist:

• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have added tests to cover my changes.
• All new and existing tests passed.

[marionebl]

Good call! Let's make our TypeScript config as strict/safe as possible.

Candidates for configuration:

• noUnusedParameters
• forceConsistentCasingInFileNames
• isolatedModules
• keyofStringsOnly
• noFallthroughCasesInSwitch

[armano2]

ok all enabled, except isolatedModules as for now its not going to compile due to chalk, and exports in ensure and is-ignored