feat(ext): add it as a language variable

Author: glebbash

vscode-ext/lo.vsix

@@ -5,7 +5,7 @@
     "author": "glebbash",
     "publisher": "glebbash",
     "license": "MIT",
-    "version": "0.0.86",
+    "version": "0.0.88",
     "engines": {
         "vscode": "^1.88.0"
     },

vscode-ext/package-lock.json

@@ -1125,7 +1125,7 @@
             "patterns": [
                 {
                     "name": "variable.language.self.lo",
-                    "match": "\\b[Ss]elf\\b"
+                    "match": "\\b([Ss]elf|it)\\b"
                 }
             ]
         },