* chore: add dotenv dependency and configure environment variables in admin, space, and web apps
* chore: allowed multiple hosts in dev mode
* chore: move dotenv to dev deps
* chore: update Vite configuration to set server host to 127.0.0.1 for admin, space, and web apps
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Co-authored-by: gakshita <akshitagoyal1516@gmail.com>