plugins/cord-nvim: fix formatting in test

tests/test-sources/plugins/by-name/cord-nvim/default.nix

@@ -1,30 +1,30 @@
 {
-	empty = {
-		# don't run tests as they try to access the network.
-		test.runNvim = false;
-		plugins.cord-nvim.enable = true;
-	};
+  empty = {
+    # don't run tests as they try to access the network.
+    test.runNvim = false;
+    plugins.cord-nvim.enable = true;
+  };
 
-	defaults = {
-		# don't run tests as they try to access the network.
-		test.runNvim = true;
-		plugins.cord-nvim = {
-			enable = true;
-			settings = {
-				usercmd = false;
-				log_level = null;
-			};
-		};
-	};
+  defaults = {
+    # don't run tests as they try to access the network.
+    test.runNvim = true;
+    plugins.cord-nvim = {
+      enable = true;
+      settings = {
+        usercmd = false;
+        log_level = null;
+      };
+    };
+  };
 
-	example = {
-		# don't run tests as they try to access the network.
-		test.runNvim = false;
-		plugins.cord-nvim = {
-			enable = true;
-			settings = {
-				usercmd = false;
-			};
-		};
-	};
+  example = {
+    # don't run tests as they try to access the network.
+    test.runNvim = false;
+    plugins.cord-nvim = {
+      enable = true;
+      settings = {
+        usercmd = false;
+      };
+    };
+  };
 }