feat: add interactive config generator

[JoE11-y]

for #1106

Implemented the initial version of the interactive project creation process. It guides users through setting up datasources, contracts, and indexes dynamically, with support for EVM, Tezos, and Starknet, each having tailored prompts for their specific needs.

Currently focused on the "create from scratch" route, with some adjustments made to improve the flow.

Please check so I can proceed with further development.

@droserasprout