treewide: Per RFC45, remove all unquoted URLs

pkgs/desktops/lxde/core/lxappearance/default.nix

@@ -18,7 +18,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "A lightweight program for configuring the theme and fonts of gtk applications";
-    homepage = https://lxde.org/;
+    homepage = "https://lxde.org/";
     maintainers = [ stdenv.lib.maintainers.hinton ];
     platforms = stdenv.lib.platforms.linux;
     license = stdenv.lib.licenses.gpl2;

pkgs/desktops/lxde/core/lxmenu-data.nix

@@ -12,7 +12,7 @@ stdenv.mkDerivation rec {
   buildInputs = [ intltool ];
 
   meta = {
-    homepage = https://lxde.org/;
+    homepage = "https://lxde.org/";
     license = stdenv.lib.licenses.gpl2;
     description = "Freedesktop.org desktop menus for LXDE";
     platforms = stdenv.lib.platforms.linux;

pkgs/desktops/lxde/core/lxpanel/default.nix

@@ -20,7 +20,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "Lightweight X11 desktop panel for LXDE";
-    homepage = https://lxde.org/;
+    homepage = "https://lxde.org/";
     license = stdenv.lib.licenses.gpl2;
     maintainers = [ stdenv.lib.maintainers.ryneeverett ];
     platforms = stdenv.lib.platforms.linux;

pkgs/desktops/lxde/core/lxrandr/default.nix

@@ -15,7 +15,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "LXRandR is the standard screen manager of LXDE.";
-    homepage = https://lxde.org/;
+    homepage = "https://lxde.org/";
     license = stdenv.lib.licenses.gpl2;
     maintainers = with maintainers; [ rawkode ];
     platforms = stdenv.lib.platforms.linux;

pkgs/desktops/lxde/core/lxtask/default.nix

@@ -24,7 +24,7 @@ stdenv.mkDerivation rec {
       Desktop Environment, it's totally desktop independent and only
       requires pure GTK.
     '';
-    homepage = https://wiki.lxde.org/en/LXTask;
+    homepage = "https://wiki.lxde.org/en/LXTask";
     license = stdenv.lib.licenses.gpl2Plus;
     platforms = stdenv.lib.platforms.unix;
     maintainers = [ stdenv.lib.maintainers.romildo ];