RemoteOK news fetch

## Cleaning of texts
**Purpose**: Cleans HTML tags and special characters from the job descriptions for better readability.
Attempts to parse cleaned job description JSON safely, handling errors gracefully if parsing fails.
Generates a human-readable salary string from the salary_min and salary_max fields.
Adds a high-port flag to any entry where the port number is greater than 5000 (optional diagnostic/extra logic).
Upserts job data into an Airtable table using the job ID as the unique identifier.
Purpose: Formats job data into a Telegram-friendly message string.
Purpose: Sends the formatted message to a specific Telegram chat using a bot.