feat: linting for raw key value lang editors

packages/hoppscotch-app/helpers/editor/linting/rawKeyValue.ts

@@ -0,0 +1,24 @@
+import * as E from "fp-ts/Either"
+import { strictParseRawKeyValueEntriesE } from "@hoppscotch/data"
+import { convertIndexToLineCh } from "../utils"
+import { LinterDefinition, LinterResult } from "./linter"
+
+const linter: LinterDefinition = (text) => {
+  const result = strictParseRawKeyValueEntriesE(text)
+  if (E.isLeft(result)) {
+    const pos = convertIndexToLineCh(text, result.left.pos + 1)
+
+    return Promise.resolve([
+      <LinterResult>{
+        from: pos,
+        to: pos,
+        message: result.left.message,
+        severity: "error",
+      },
+    ])
+  } else {
+    return Promise.resolve([])
+  }
+}
+
+export default linter