Fix #35: On demand transcription

[HeySreelal]

Changes

• Added /transcribe command - to transcribe the reply_to_message
• Added the property transcribeAllAudio in the database as per this suggestion
• Updated help message and en.yaml and ru.yaml to reflect the change
• Added /transcribeAll command to toggle the transcribeAllAudio property value.

Note:
All the guidelines from #53 have been followed.

Hopefully fixes #35.

[backmeupplz]

@HeySreelal lgtm, did you test it manually?

[HeySreelal]

Good to hear that. Yes, I tested it manually.

If you want to go a testing round I can start a test bot and share the bot details maybe?

[backmeupplz]

@HeySreelal nah, YOLO

[backmeupplz]

@HeySreelal can you fix yarn lint, please?

[HeySreelal]

Sure, let me check that in a moment...

[HeySreelal]

The yarn lint shows warnings on unused-vars.

  67:16  warning  'sendToTelegramAdmin' is defined but never used  @typescript-eslint/no-unused-vars
  87:46  warning  'info' is assigned a value but never used        @typescript-eslint/no-unused-vars

I see that you've removed the error logging in this commit: 548ae0c.

Should I enable it back or just add some ignore flags?

[HeySreelal]

I just referenced all the unused identifiers inside the report method. Please let me know if you're actually looking to enable the logging or if this is fine :)