Add prompt management functionality with CRUD operations - Phase 1

Prompts available in node server and also in database On dashboard, check dev options -> Edit org details - some prompts (org_description, personality prompt, unsure msg, closure_msg) can be changed there End goal expectation is: We need a centralized place on the dashboard from where we can change all the prompts that is used in /send_message pipeline. Right now, changing a prompt usually involves: - Changing hardcoded prompts present in the node server (like userCentricPrompt.js) -> committing -> MR -> making it live (note: these prompts are different from the one in the dashboard) v1: We want all node prompts shifted to the dashboard and handled via the DB. - check user journey of /send_message v2: Each prompt has several sections to it for example: conversation_rules, guardrails etc. We want to be able to modify individual sections that go into a prompt via the dashboard.