Fix Panic due to wrong image path in examples/clipboard

[rafialhamd]

Updated with correct image path to FIX Panic Error:

thread 'main' panicked at examples\clipboard\main.rs:111:58:
called Result::unwrap() on an Err value: Error { domain: g-io-error-quark, code: 1, message: "Error opening file C:\github.com\gtk-rs\gtk4-rs\examples\examples\clipboard\asset.png: No such file or directory" }

[bilelmoussaoui]

The path would always be wrong based on from where you run the demo...

[sdroege]

Maybe the file can just be include_bytes! and then we use a memory input stream here?

[rafialhamd]

Maybe the file can just be include_bytes! and then we use a memory input stream here?

I believe that should be solution, and NOT my PR.

The path would always be wrong based on from where you run the demo...

Just found that my PR code works in examples BUT NOT from the parent directory.
So, the PR fixes one issue and causes another.

This needs a separate issue/fix.