Fix language-configuration schema squiggle

Switch autoClosingPairs / surroundingPairs from array tuples to the
{ open, close } object form (also adds notIn:["string"] on quote
pairs so VS Code does not auto-close another quote inside a string).
Add a $schema reference to the SchemaStore catalog
(https://json.schemastore.org/language-configuration.json) so the
file is validated against a real public schema instead of an
inferred one.

Author: azizbecha

language-configuration.json

@@ -1,4 +1,5 @@
 {
+  "$schema": "https://json.schemastore.org/language-configuration.json",
   "comments": {
     "lineComment": "#"
   },
@@ -7,15 +8,15 @@
     ["(", ")"]
   ],
   "autoClosingPairs": [
-    ["[", "]"],
-    ["(", ")"],
-    ["\"", "\""],
-    ["'", "'"]
+    { "open": "[", "close": "]" },
+    { "open": "(", "close": ")" },
+    { "open": "\"", "close": "\"", "notIn": ["string"] },
+    { "open": "'", "close": "'", "notIn": ["string"] }
   ],
   "surroundingPairs": [
-    ["[", "]"],
-    ["(", ")"],
-    ["\"", "\""],
-    ["'", "'"]
+    { "open": "[", "close": "]" },
+    { "open": "(", "close": ")" },
+    { "open": "\"", "close": "\"" },
+    { "open": "'", "close": "'" }
   ]
 }