screen-locker: set Restart=always for all services (#6534)

modules/services/screen-locker.nix

@@ -127,6 +127,7 @@ in {
           ExecStart = concatStringsSep " "
             ([ "${cfg.xss-lock.package}/bin/xss-lock" "-s \${XDG_SESSION_ID}" ]
               ++ cfg.xss-lock.extraOptions ++ [ "-- ${cfg.lockCmd}" ]);
+          Restart = "always";
         };
       };
     }
@@ -153,6 +154,7 @@ in {
             "-locker '${pkgs.systemd}/bin/loginctl lock-session \${XDG_SESSION_ID}'"
           ] ++ optional cfg.xautolock.detectSleep "-detectsleep"
             ++ cfg.xautolock.extraOptions);
+          Restart = "always";
         };
       };
     })

tests/modules/services/screen-locker/basic-configuration.nix

@@ -19,7 +19,9 @@
 
     assertFileExists $xssService
     assertFileRegex $xssService 'ExecStart=.*/bin/xss-lock.*-test.*i3lock -n -c AA0000'
+    assertFileRegex $xssService 'Restart=always'
     assertFileExists $xautolockService
     assertFileRegex $xautolockService 'ExecStart=.*/bin/xautolock.*-time 5.*-detectsleep.*-test.*'
+    assertFileRegex $xautolockService 'Restart=always'
   '';
 }