Translators

fix deepl(). The job of fixing `get_language_map()` is user `BingLingGroup`'s merged.

fix `app.().js` changed.
allow setting timeout. 47

add caiyun().

fix `request_server_region_info`, https -> http, merge user `dadas190`.

fix tencent().
fix bing().
fix google() can’t get a complete language map.
delete temp_language_map
fix `request_server_region_info`，can `input`.

fix google() can’t get a complete language map, temporary, to be improved. 37 42
fix bing().
fix deepl(). add language count from 11 to 24.
fix default `sleep_seconds`. 39
fix limit of `len(query_text)<5000`. 40
add check_query_text().
make `get_headers()` stronger.
make `translate_html()` time complexity from O(n) to O(1), multiprocessing.