Flake update, use goland and rust from stable, add kdenlive for fenix@fenixpc

hosts/fenixpc/fenix.nix

@@ -1,5 +1,6 @@
 {
   pkgs,
+  pkgsStable,
   lib,
   config,
   ...
@@ -18,6 +19,7 @@ in
       spotify
       obsidian
       transmission_4-qt6
+      kdePackages.kdenlive
 
       # Games
       steam
@@ -31,8 +33,8 @@ in
       direnv
       yaml-language-server
       plantuml
-      jetbrains.goland
-      jetbrains.rust-rover
+      pkgsStable.jetbrains.goland
+      pkgsStable.jetbrains.rust-rover
       rustup
       gcc
       gnumake