feat: gram base config

gram/snippets/plaintext.json

@@ -0,0 +1,12 @@
+{
+    // Each snippet must have a name and body, but the prefix and description are optional.
+    // The prefix is used to trigger the snippet, but when omitted then the name is used.
+    // Use placeholders like $1, $2 or ${1:defaultValue} to define tab stops.
+    // The $0 determines the final cursor position.
+    // Placeholders with the same value are linked.
+    "Log to console": {
+        "prefix": "log",
+        "body": ["console.info(\"Hello, ${1:World}!\")", "$0"],
+        "description": "Logs to console"
+    }
+}