edited grapher implementation

- fixed grapher implementation with new gui
- fixed a bug in CgLineEdit where pressing backspace on an empty input would cause a crash

src/user/lib/libgui/cg_inputs.rs

@@ -64,7 +64,7 @@ impl CgTextEdit for CgLineEdit {
         self.ptr += 1;
     }
     fn backspace(&mut self) {
-        if self.ptr >= 0 {
+        if self.ptr > 0 {
             self.ptr -= 1;
             self.text.remove(self.ptr);
         }

src/user/lib/libgui/cg_widgets.rs

@@ -76,7 +76,7 @@ impl CgComponent for CgContainer<'_> {
 #[derive(Debug, Clone)]
 pub struct CgTextBox {
     title: String,
-    content: String,
+    pub content: String,
     pub position: Position,
     pub dimensions: Dimensions,
     outlined: bool,
@@ -85,7 +85,7 @@ pub struct CgTextBox {
 
 impl CgTextBox {
     pub fn new(title: String, content: String, position: Position, dimensions: Dimensions, outlined: bool) -> CgTextBox {
-        CgTextBox { title, content, position, dimensions, outlined, wrap_words: false }
+        CgTextBox { title, content, position, dimensions, outlined, wrap_words: true }
     }
 
     fn render_title(&self, frame: &mut Frame) {