Rename assets folder to screenshots, and improve the build system.

scripts/cargo.sh

@@ -1,3 +1,5 @@
 #!/bin/sh
 
-cargo build --release -p hammond-gtk && cp $1/target/release/hammond-gtk $2
+export CARGO_HOME=$1/target/cargo-home
+
+cargo build --release -p hammond-gtk && cp $1/target/release/hammond-gtk $2

scripts/release.sh

@@ -18,22 +18,14 @@ cp meson.build $DIST
 cp Hammond.doap $DIST
 cp LICENSE $DIST
 cp README.md $DIST
-cp -rf assets $DIST
+cp -rf screenshots $DIST
 cp -rf scripts $DIST
 
 # cargo vendor
-cargo vendor
 mkdir $DIST/.cargo
-cat <<EOF > $DIST/.cargo/config
-[source.crates-io]
-replace-with = "vendored-sources"
-
-[source.vendored-sources]
-directory = "vendor"
-EOF
+cargo vendor > $DIST/.cargo/config
 cp -rf vendor $DIST/
 
 # packaging
 cd $DEST/dist
 tar -cJvf $VERSION.tar.xz $VERSION
-