android: Trim whitespace around font filenames. (#32298)

This is a speculative fix for #32161. A similar failure is
reproducible on the Android x86_64 emulator with API 35
system image. The fix has not been validated on the actual
device so potentially there might be other issues that need
to be fixed to complete #32161.

Signed-off-by: Mukilan Thiyagarajan <mukilan@igalia.com>

components/gfx/platform/freetype/android/font_list.rs

@@ -429,7 +429,7 @@ impl FontList {
 
     fn text_content(nodes: &[Node]) -> Option<String> {
         nodes.get(0).and_then(|child| match child {
-            Node::Text(contents) => Some(contents.clone()),
+            Node::Text(contents) => Some(contents.trim().into()),
             Node::Element { .. } => None,
         })
     }