Add inline syntax highlighting support for Lua (#105)

* Add lua grammar

* For some reason tsconfig needs to be included or punctuation highlights are missing

* Never mind it was just flaky

* Support comment tagged string syntax

* chore: add changeset

---------

Co-authored-by: Alessia Bellisario <github@bellisar.io>

.changeset/neat-frogs-trade.md

@@ -0,0 +1,5 @@
+---
+"vscode-apollo": minor
+---
+
+Add inline syntax highlighting support for Lua

package.json

@@ -175,6 +175,16 @@
           "meta.embedded.block.graphql": "graphql"
         }
       },
+      {
+        "injectTo": [
+          "source.lua"
+        ],
+        "scopeName": "inline.graphql.lua",
+        "path": "./syntaxes/graphql.lua.json",
+        "embeddedLanguages": {
+          "meta.embedded.block.graphql": "graphql"
+        }
+      },
       {
         "injectTo": [
           "source.ruby"

syntaxes/graphql.lua.json

@@ -0,0 +1,51 @@
+{
+  "fileTypes": ["lua", "luau"],
+  "injectionSelector": "L:source -string -comment",
+  "patterns": [
+    {
+      "contentName": "meta.embedded.block.graphql",
+      "begin": "(--\\[\\[)\\s*(gql)\\s*(\\]\\])\\s*(\\[\\[)",
+      "beginCaptures": {
+        "1": {
+          "name": "comment.block.lua"
+        },
+        "2": {
+          "name": "entity.name.function.lua"
+        },
+        "3": {
+          "name": "comment.block.lua"
+        },
+        "4": {
+          "name": "string.quoted.double.lua"
+        }
+      },
+      "end": "(\\]\\])",
+      "endCaptures": {
+        "1": {
+          "name": "string.quoted.double.lua"
+        }
+      },
+      "patterns": [{ "include": "source.graphql" }]
+    },
+    {
+      "contentName": "meta.embedded.block.graphql",
+      "begin": "(gql)\\(?\\s*(\\[\\[)",
+      "beginCaptures": {
+        "1": {
+          "name": "entity.name.function.lua"
+        },
+        "2": {
+          "name": "string.quoted.double.lua"
+        }
+      },
+      "end": "(\\]\\])",
+      "endCaptures": {
+        "1": {
+          "name": "string.quoted.double.lua"
+        }
+      },
+      "patterns": [{ "include": "source.graphql" }]
+    }
+  ],
+  "scopeName": "inline.graphql.lua"
+}