xterm: move to pcGuiApps

hosts/modules/gui/default.nix

@@ -105,7 +105,6 @@ in
     "vulkan-tools"  # vulkaninfo
     # "whalebird"  # pleroma client (Electron). input is broken on phosh.
     "xdg-terminal-exec"
-    "xterm"  # broken on phosh
   ];
 
   sane.programs.handheldGuiApps = declPackageSet [
@@ -172,6 +171,7 @@ in
       "tor-browser"  # x86-only
       "vlc"
       "wireshark"  # could maybe ship the cli as sysadmin pkg
+      "xterm"  # requires Xwayland
       # "zecwallet-lite"  # x86-only
     ]
   );