chore: some cleanup and optimization

Author: husayt

src/findAyahIdBySurah.ts

@@ -1,4 +1,4 @@
-import { getSurahMeta } from "./getSurahMeta"
+import { SurahList } from "./lists/surahList"
 import { AyahId, AyahNo, Surah } from "./types"
 import { checkValidSurahAyah } from "./validation"
 
@@ -10,6 +10,6 @@ import { checkValidSurahAyah } from "./validation"
  */
 export function findAyahIdBySurah(surah: Surah, ayah: AyahNo): AyahId {
   checkValidSurahAyah(surah, ayah)
-  const [startAyahId] = getSurahMeta(surah)
+  const [startAyahId] = SurahList[surah]
   return startAyahId + ayah - 1
 }

src/findJuzAndShift.ts

@@ -24,7 +24,6 @@ export function findJuzAndShift(
     leftAyahId: AyahId
     ayahsBetweenJuzSurah: AyahCountBetweenJuzSurah
   } {
-  checkValidSurah(surah)
   const ayahId: AyahId = findAyahIdBySurah(surah, ayah)
 
   const juz = findJuzByAyahId(ayahId)

tests/getAyahMeta.spec.ts

@@ -1,4 +1,4 @@
-import { getAyahMeta, meta, RukuList } from "../src"
+import { getAyahMeta, meta } from "../src"
 
 describe("ayahMeta", () => {
   it("should return correct metadata for the first ayah", () => {