project: Move to ESM Modules

src/WABinary/encode.ts

@@ -1,5 +1,5 @@
 import * as constants from './constants'
-import { FullJid, jidDecode } from './jid-utils'
+import { type FullJid, jidDecode } from './jid-utils'
 import type { BinaryNode, BinaryNodeCodingOptions } from './types'
 
 export const encodeBinaryNode = (
@@ -138,11 +138,11 @@ const encodeBinaryNodeInner = (
 
 		const strLengthHalf = Math.floor(str.length / 2)
 		for (let i = 0; i < strLengthHalf; i++) {
-			pushByte(packBytePair(str[2 * i], str[2 * i + 1]))
+			pushByte(packBytePair(str[2 * i]!, str[2 * i + 1]!))
 		}
 
 		if (str.length % 2 !== 0) {
-			pushByte(packBytePair(str[str.length - 1], '\x00'))
+			pushByte(packBytePair(str[str.length - 1]!, '\x00'))
 		}
 	}