Change app name to Rounded Screen Edge for clarity

[mauriciobellon]

Given that the app focuses on applying a mask to round the edges of the monitor itself, changing the name to "Rounded Screen Edge" would be a more accurate and descriptive representation of its purpose. Here's why:

• Specificity: The name clearly conveys that the app modifies the visual edges of the screen or monitor, not the individual windows.

• Brevity: It's concise and easier to remember.

• Modern Appeal: The name aligns with trends in modern UI design, where rounded elements are often associated with sleek and premium visuals.