fix: gemini multimodal (#712)

# PR Checklist
- [ ] Have you checked if it works normally in all models? *Ignore this
if it doesn't use models.*
- [ ] Have you checked if it works normally in all web, local, and node
hosted versions? If it doesn't, have you blocked it in those versions?
- [ ] Have you added type definitions?

# Description
fix gemini multimodal error.
ERROR MESSAGE : Invalid value at 'contents[6].parts[1]' (oneof), oneof
field 'data' is already set. Cannot set 'text'

src/ts/process/request.ts

@@ -1555,9 +1555,17 @@ async function requestGoogleCloudVertex(arg:RequestDataArgumentExtended):Promise
                 parts: geminiParts,
             });
         } else if (prevChat?.role === qRole) {
-            reformatedChat[reformatedChat.length-1].parts[
+            if (reformatedChat[reformatedChat.length-1].parts[
                 reformatedChat[reformatedChat.length-1].parts.length-1
-            ].text += '\n' + chat.content
+            ].inlineData) {
+                reformatedChat[reformatedChat.length-1].parts.push({
+                    text: chat.content,
+                })
+            } else {
+                reformatedChat[reformatedChat.length-1].parts[
+                    reformatedChat[reformatedChat.length-1].parts.length-1
+                ].text += '\n' + chat.content
+            }
             continue
         }
         else if(chat.role === 'system'){
@@ -2841,4 +2849,4 @@ export interface KoboldGenerationInputSchema extends KoboldSamplerSettingsSchema
     sampler_order?: number[];
     sampler_seed?: number;
     sampler_full_determinism?: boolean;
-}
+}