Add language configuration (#779)

language-configuration.json

@@ -0,0 +1,35 @@
+{
+  "comments": {
+    "lineComment": "//",
+    "blockComment": ["/*", "*/"]
+  },
+  "brackets": [
+    ["{", "}"],
+    ["[", "]"],
+    ["(", ")"],
+    ["<", ">"]
+  ],
+  "autoClosingPairs": [
+    { "open": "{", "close": "}", "notIn": ["comment"] },
+    { "open": "[", "close": "]", "notIn": ["comment"] },
+    { "open": "(", "close": ")", "notIn": ["comment"] },
+    { "open": "'", "close": "'", "notIn": ["comment"] },
+    { "open": "\"", "close": "\"", "notIn": ["comment"] },
+    { "open": "`", "close": "`", "notIn": ["comment"] },
+    { "open": "/**", "close": " */", "notIn": ["string"] }
+  ],
+  "surroundingPairs": [
+    ["{", "}"],
+    ["[", "]"],
+    ["(", ")"],
+    ["'", "'"],
+    ["\"", "\""],
+    ["`", "`"],
+    ["<", ">"]
+  ],
+  "colorizedBracketPairs": [
+    ["(", ")"],
+    ["[", "]"],
+    ["{", "}"]
+  ]
+}

package.json

@@ -52,7 +52,8 @@
           ".jsx.snap",
           ".ts.snap",
           ".tsx.snap"
-        ]
+        ],
+        "configuration": "./language-configuration.json"
       }
     ],
     "grammars": [