fixed eslint error & integrated with prettier as well as formatted the whole codebase (#3450)

tests/lib/markdown-text-helper-test.js

@@ -42,6 +42,10 @@ test(t => {
 
   testCases.forEach(testCase => {
     const [input, expected] = testCase
-    t.is(markdown.strip(input), expected, `Test for strip() input: ${input} expected: ${expected}`)
+    t.is(
+      markdown.strip(input),
+      expected,
+      `Test for strip() input: ${input} expected: ${expected}`
+    )
   })
 })