Remove "Demo" from application name

[akashs056]

Pull request (PR) checklist

Please check if your pull request fulfills the following requirements:

• I've read the Contribution Guidelines and my PR doesn't break the rules.
• I've read and understand the Developer Guidelines.
• I confirm that I've run the code locally and everything works as expected.
• My PR includes only the necessary changes to fix the issue (i.e., no unnecessary files or lines of code are changed).
• 🎬 I've attached a screen recording of using the new code to the next paragraph (if applicable).

What's changed?

• The new name reflects the full-featured nature of the application

Does this PR close any GitHub issues?

• Closes [BUG]  #3361

[ILIYANGERMANOV]

PR template violated, missing "Closes X" so GitHub can auto-close the issue after merging. Gotta add a PR template check cuz often I become the CI 😄 Codewise looks good

[akashs056]

PR template violated, missing "Closes X" so GitHub can auto-close the issue after merging. Gotta add a PR template check cuz often I become the CI 😄 Codewise looks good

Changes done