refactor: use libcosmic::dialog and make rfd optional

Cargo.toml

@@ -13,8 +13,6 @@ lexical-sort = "0.3.1"
 log = "0.4.20"
 patch = "0.7.0"
 notify = "6.1.1"
-#TODO: this is using gtk for file dialogues
-rfd = { version = "0.12.0", optional = true }
 serde = { version = "1", features = ["serde_derive"] }
 tokio = { version = "1", features = ["process", "time"] }
 # Extra syntax highlighting
@@ -35,9 +33,9 @@ features = ["syntect", "vi"]
 
 [dependencies.libcosmic]
 git = "https://github.com/pop-os/libcosmic"
+branch = "dialog"
 default-features = false
 features = ["tokio", "winit"]
-#path = "../libcosmic"
 
 #TODO: clean up and send changes upstream
 [dependencies.systemicons]
@@ -47,8 +45,13 @@ git = "https://github.com/jackpot51/systemicons"
 fork = "0.1"
 
 [features]
-default = ["rfd", "wgpu"]
+default = ["xdg-portal", "wgpu"]
+# Use RFD for file chooser dialogs
+rfd = ["libcosmic/rfd"]
+# Enable GPU rendering with WGPU
 wgpu = ["libcosmic/wgpu"]
+# Use XDG portal dialogs on Linux
+xdg-portal = ["libcosmic/xdg-portal"]
 
 [patch.crates-io]
 smithay-client-toolkit = { git = "https://github.com/pop-os/client-toolkit", branch = "wayland-resize" }