✨ Emmet Support and Tab Behavior

#### Lack of Emmet Support:
CodeEdit does not currently support Emmet, which is a significant tool for efficient HTML and CSS coding.

#### Tab Key Behavior:
When a line of code is selected and the Tab key is pressed, CodeEdit deletes the selected line instead of indenting it. The expected behavior is that pressing the Tab key should indent the selected line, similar to the functionality in Visual Studio Code (VSC).