chore: fix trailing whitespace in devcontainer.json (pre-commit)

Author: avinab-neogy

.devcontainer/devcontainer.json

@@ -7,8 +7,8 @@
     "customizations": {
         "vscode": {
             "settings": {
-                "editor.tabSize": 8,  
-                "editor.indentSize": 4,  
+                "editor.tabSize": 8,
+                "editor.indentSize": 4,
                 "editor.detectIndentation": false,
                 "r.lsp.diagnostics": false,
                 "r.plot.useHttpgd": true,