add config update when deleting openai model

src/lib/components/admin/Settings/Connections.svelte

@@ -274,6 +274,7 @@
 												newConfig[newIdx] = OPENAI_API_CONFIGS[newIdx < idx ? newIdx : newIdx + 1];
 											});
 											OPENAI_API_CONFIGS = newConfig;
+											updateOpenAIHandler();
 										}}
 									/>
 								{/each}