Floating Text Widget / UI improvements

The main objective of this project is to develop a functioning text pop-up feature in Musescore. This pop-up will act as a framework for various text-related features that will be added in the future. It can be accessed by selecting a section of text in the score, providing users with access to basic text properties such as font, font color, font size, line spacing, and text spacing. In addition to the text pop-up feature, UI improvements in Musescore will be implemented to enhance the overall user experience. These improvements will focus on optimizing the layout and improving usability. If time permits, spell-checking, automatic hyphenation, and verse extraction capabilities will be worked on as a part of this project.