feat(conversationPreset.js): add context and systemMessage fields to conversation preset schema
feat(askBingAI.js): pass context and systemMessage parameters to ask function
feat(Settings.jsx): add toneStyle prop to BingAISettings component
feat(BingAIOptions/index.jsx): add useEffect to check if advanced mode is needed
feat(cleanupPreset.js): add context and systemMessage fields to cleaned up preset object
feat(getDefaultConversation.js): add context and systemMessage fields to default conversation object
feat(handleSubmit.js): add context and systemMessage fields to message object
feat(BingAI): convert toneStyle to lowercase before setting it in state
feat(BingAI): pass setToneStyle function to Settings component
refactor(BingAI): remove unused import and change setOption to setToneStyle in Settings component
refactor(fetchers.js): add axiosPost function for debounced axios post requests
feat(api): add @dqbd/tiktoken package as a dependency
feat(api): add /api/tokenizer endpoint to tokenize text using @dqbd/tiktoken
feat(client): add toneStyle dropdown to BingAI Settings component
feat(client): add token count to BingAI Settings component
style(ui): add z-index to Dropdown and EndpointOptionsPopover components
Add z-index to Dropdown and EndpointOptionsPopover components to ensure they are displayed above other components.