[bugfix] fix playlist maps with malformed hash doesnt get loaded + improve playlist maps reading reliability

src/shared/helpers/string.helpers.ts

@@ -0,0 +1,13 @@
+const HashAlgorithmsLengths = {
+    sha1: 40,
+} as const;
+
+export function findHashInString(str: string, algorithm: keyof typeof HashAlgorithmsLengths = 'sha1'): string | undefined {
+
+    if(!str) { return undefined; }
+
+    const hashLength = HashAlgorithmsLengths[algorithm];
+    const regex = new RegExp(`[a-fA-F0-9]{${hashLength}}`, "g");
+    const match = str.match(regex);
+    return match ? match[0] : undefined;
+}