fix(multiverse): Define the color of the placeholder text of the input line

This ensures that we're using the same color despite what your color
scheme of your terminal is. Some color schemes might produce unreadable
combinations of foreground color and background color.

labs/multiverse/src/widgets/room_view/input.rs

@@ -35,7 +35,7 @@ pub struct Input {
 impl Input {
     /// Create a new empty [`Input`] widget.
     pub fn new() -> Self {
-        let textarea = TextArea::default();
+        let textarea = Self::text_area();
 
         Self { textarea }
     }
@@ -71,7 +71,14 @@ impl Input {
 
     /// Clear the text from the input area.
     pub fn clear(&mut self) {
-        self.textarea = TextArea::default();
+        self.textarea = Self::text_area();
+    }
+
+    fn text_area() -> TextArea<'static> {
+        let mut area = TextArea::default();
+        area.set_placeholder_style(Style::new().fg(tailwind::GRAY.c50));
+
+        area
     }
 }