Function decode64

decode64(data: string): string
Decode a base-64 string into a binary string.
Parameters
- data: string
  the base-64 string to decode
Returns string
the decoded binary string
Example
```
import { decode64 } from "@trashpanda001/helpers/string"

decode64("YQ")
// "a"
decode64("YQ==")
// "a"
```
- Defined in string.ts:98