🤖 feat: Gemini 1.5 Support (+Vertex AI) (#2383)

* WIP: gemini-1.5 support

* feat: extended vertex ai support

* fix: handle possibly undefined modelName

* fix: gpt-4-turbo-preview invalid vision model

* feat: specify `fileConfig.imageOutputType` and make PNG default image conversion type

* feat: better truncation for errors including base64 strings

* fix: gemini inlineData formatting

* feat: RAG augmented prompt for gemini-1.5

* feat: gemini-1.5 rates and token window

* chore: adjust tokens, update docs, update vision Models

* chore: add back `ChatGoogleVertexAI` for chat models via vertex ai

* refactor: ask/edit controllers to not use `unfinished` field for google endpoint

* chore: remove comment

* chore(ci): fix AppService test

* chore: remove comment

* refactor(GoogleSearch): use `GOOGLE_SEARCH_API_KEY` instead, issue warning for old variable

* chore: bump data-provider to 0.5.4

* chore: update docs

* fix: condition for gemini-1.5 using generative ai lib

* chore: update docs

* ci: add additional AppService test for `imageOutputType`

* refactor: optimize new config value `imageOutputType`

* chore: bump CONFIG_VERSION

* fix(assistants): avatar upload

api/typedefs.js

@@ -14,6 +14,12 @@
  * @memberof typedefs
  */
 
+/**
+ * @exports GenerativeModel
+ * @typedef {import('@google/generative-ai').GenerativeModel} GenerativeModel
+ * @memberof typedefs
+ */
+
 /**
  * @exports AssistantStreamEvent
  * @typedef {import('openai').default.Beta.AssistantStreamEvent} AssistantStreamEvent
@@ -295,6 +301,12 @@
  * @memberof typedefs
  */
 
+/**
+ * @exports EImageOutputType
+ * @typedef {import('librechat-data-provider').EImageOutputType} EImageOutputType
+ * @memberof typedefs
+ */
+
 /**
  * @exports TCustomConfig
  * @typedef {import('librechat-data-provider').TCustomConfig} TCustomConfig