codemirror query input: Review props compatibility with Monaco

Created by: fkling

There are a couple of props that MonacoQueryInput defines which are currently ignored in CodeMirrorQueryInput. These are (list may not be complete):

• editorClassName (should find out how its used and whether it's necessary to support)
• fetchStreamSuggestions (used by the vscode extension so maybe we don't have to support atm)
• onCompletionItemSelected (used by search onboarding tour)
• onFocus
• onSuggestionsInitialized (used by search onboarding tour)