[Update] Change name of the app to Translator

[Illuminati9]

Issue Title:

Rename App to "Translator"

Description:

The current name of the app does not accurately reflect its primary functionality as a translator. To align the app's branding with its core purpose and improve clarity for users, this issue proposes renaming the app to "Translator."

Tasks:

• Update the app name in the project files, including pubspec.yaml, AndroidManifest.xml, and Info.plist (for iOS).
• Replace references to the old app name in code comments, documentation, and user interface elements.
• Update app assets (e.g., launcher icon, app store listing) to reflect the new name.
• Ensure consistency across all platforms and channels where the app is published or referenced.