config: add java mime handler for zed and XDG_PROJECTS_DIR

dot_config/mimeapps.list

@@ -19,6 +19,7 @@ x-scheme-handler/spotify=spotify-launcher.desktop
 x-scheme-handler/about=xdg-https-handler.desktop
 x-scheme-handler/unknown=xdg-https-handler.desktop
 x-scheme-handler/claude-cli=claude-code-url-handler.desktop
+text/x-java=dev.zed.Zed.desktop
 
 [Added Associations]
 x-scheme-handler/http=firefox.desktop;
@@ -35,3 +36,4 @@ application/pdf=org.pwmt.zathura-pdf-mupdf.desktop;
 application/gml+xml=dev.zed.Zed.desktop;
 image/png=satty.desktop;gimp.desktop;org.pwmt.zathura-pdf-mupdf.desktop;
 image/jpeg=satty.desktop;gimp.desktop;org.pwmt.zathura-pdf-mupdf.desktop;
+text/x-java=dev.zed.Zed.desktop;

dot_config/private_user-dirs.dirs

@@ -13,3 +13,4 @@ XDG_DOCUMENTS_DIR="$HOME/Documents"
 XDG_MUSIC_DIR="$HOME/Music"
 XDG_PICTURES_DIR="$HOME/Pictures"
 XDG_VIDEOS_DIR="$HOME/Videos"
+XDG_PROJECTS_DIR="$HOME/Projects"