🎥 feat: YouTube Tool (#5582)

* adding youtube tool

* refactor: use short `url` param instead of `videoUrl`

* refactor: move API key retrieval to a separate credentials module

* refactor: remove unnecessary `isEdited` message property

* refactor: remove unnecessary `isEdited` message property pt. 2

* refactor: YouTube Tool with new `tool()` generator, handle tools already created by new `tool` generator

* fix: only reset request data for multi-convo messages

* refactor: enhance YouTube tool by adding transcript parsing and returning structured JSON responses

* refactor: update transcript parsing to handle raw response and clean up text output

* feat: support toolkits and refactor YouTube tool as a toolkit for better LLM usage

* refactor: remove unused OpenAPI specs and streamline tools transformation in loadAsyncEndpoints

* refactor: implement manifestToolMap for better tool management and streamline authentication handling

* feat: support toolkits for assistants

* refactor: rename loadedTools to toolDefinitions for clarity in PluginController and assistant controllers

* feat: complete support of toolkits for assistants

---------

Co-authored-by: Danilo Pejakovic <danilo.pejakovic@leoninestudios.com>

api/server/utils/import/__data__/librechat-tree.json

@@ -29,7 +29,6 @@
       "endpoint": "openAI",
       "error": false,
       "isCreatedByUser": true,
-      "isEdited": false,
       "model": null,
       "parentMessageId": "00000000-0000-0000-0000-000000000000",
       "sender": "User",
@@ -47,7 +46,6 @@
           "createdAt": "2024-05-01T16:35:12.604Z",
           "error": false,
           "isCreatedByUser": false,
-          "isEdited": false,
           "model": "gpt-4-turbo",
           "parentMessageId": "9501f99d-9bbb-40cb-bbb2-16d79aeceb72",
           "sender": "Software Engineer",