Update icon and change the label of the parameter in generate API#14

SasinduDilshara merged 2 commits intoballerina-platform:mainballerina-platform/module-ballerinax-ai.ollama:mainfrom

SasinduDilshara:integrate-chat-changesSasinduDilshara/module-ballerinax-ai.ollama:integrate-chat-changesCopy head branch name to clipboard