[PM-14445] TS strict for Key Management, Keys and Lock component (#13121)

* PM-14445: TS strict for Key Management Biometrics

* formatting

* callbacks not null expectations

* state nullability expectations updates

* unit tests fix

* secure channel naming, explicit null check on messageId

* KM-14445: TS strict for Key Management, Keys and Lock component

* conflicts resolution, new strict check failures

* null simplifications

* migrate legacy encryption when no active user throw error instead of hiding it

* throw instead of return

libs/common/src/platform/models/domain/enc-string.ts

@@ -158,7 +158,11 @@ export class EncString implements Encrypted {
     return EXPECTED_NUM_PARTS_BY_ENCRYPTION_TYPE[encType] === encPieces.length;
   }
 
-  async decrypt(orgId: string, key: SymmetricCryptoKey = null, context?: string): Promise<string> {
+  async decrypt(
+    orgId: string | null,
+    key: SymmetricCryptoKey = null,
+    context?: string,
+  ): Promise<string> {
     if (this.decryptedValue != null) {
       return this.decryptedValue;
     }