[chore]: Rename modules for better readability and maintainability

[deshraj]

Description

Seems like we have longer file names which is kinda unnecessary since the folder names already contain the keywords like llm, db etc. Hence, renaming a lot of modules and updating their import paths.

Fixes # (issue)

Type of change

Please delete options that are not relevant.

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Refactor (does not change functionality, e.g. code style improvements, linting)
• Documentation update

How Has This Been Tested?

• Unit Test

[taranjeet]

looks good. this is a great addition. thanks @deshraj