Whisper STT: Add Toggle for "[Speaking]" Prompt

[ShadowBlade72]

Added a toggle for the "[Speaking]" prompt when using the Whisper Speech to Text. This will allow someone the option to not have on screen prompts, more in line with the other translation services available.

Additionally, added a (Google Translate) translation for zh_cn and zh_tw for Whisper.

[Pietagorh]

oop, looks like the dev branch is a commit behind, i'll rebase it and then rerun the actions, bit later tho

[Pietagorh]

other services not displaying interim results isn't a feature, it's the 3rd parties not implementing a way to do so

there is already an option to disable interim results in the textbox's settings (uncheck "Interim results")

the whisper module is working as intended right now (except for the fact that it forces english for the interim text itself, which is a simple fix (turn the "[speaking]" into "stt.whisper_interim_text", add a line on the js listener to use the text as a translation key))

[taliyahwebb]

As for your added translations we are yet unsure whether we want to include them, since neither we nor you (judging from your decision to include the mention about google translate) can can verify their correctness.