Fix/sonar smells (#157)

## PR Checklist

Please check if your PR fulfills the following requirements:

- [x] The commit message follows our guidelines: CONTRIBUTING.md#commit
- [ ] Tests for the changes have been added (for bug fixes / features)
- [ ] Docs have been added / updated (for bug fixes / features)

## PR Type

What kind of change does this PR introduce?

<!-- Please check the one that applies to this PR using "x". -->

```
[ ] Bugfix
[ ] Feature
[x] Code style update (formatting, local variables)
[ ] Refactoring (no functional changes, no api changes)
[ ] Build related changes
[ ] CI related changes
[ ] Documentation content changes
[ ] Other... Please describe:
```

## What is the current behavior?

Some files still contain remaining logical OR operators (||) instead of
the safetier null coalescence operator (??).

## What is the new behavior?

All remaining instances of the || operator where replaced with the ??
operator.

## Does this PR introduce a breaking change?

```
[ ] Yes
[x] No
```

packages/ngworker/lumberjack/src/lib/formatting/format-log-driver-error.ts

@@ -10,7 +10,7 @@ export function formatLogDriverError<TPayload extends LumberjackLogPayload | voi
  log,
  logDriver,
 }: LumberjackLogDriverError<TPayload>): string {
- const thrownErrorMessage = (error as Error).message || String(error);
+ const thrownErrorMessage = (error as Error).message ?? String(error);
  const payloadMessage = log.payload ? ` with payload "${JSON.stringify(log.payload)}"` : '';
 
  return `Could not log message "${formattedLog}"${payloadMessage} to ${logDriver.config.identifier}.\n Error: "${thrownErrorMessage}"`;

packages/ngworker/lumberjack/src/lib/formatting/lumberjack-format-log.spec.ts

@@ -14,7 +14,7 @@ function parseFormattedLog(formattedLog: string) {
  const formattedLogPattern = /^([a-z]+) ([0-9.:\-TZ]+) (\[(.+)\] )?(.*)$/;
 
  const [, level, timestamp, taggedScopeWithEndingSpace = '', scope = '', message] =
- formattedLogPattern.exec(formattedLog) || [];
+ formattedLogPattern.exec(formattedLog) ?? [];
  const taggedScope = taggedScopeWithEndingSpace ? taggedScopeWithEndingSpace.slice(0, -1) : '';
 
  return {

packages/ngworker/lumberjack/src/lib/formatting/lumberjack-log-formatter.service.ts

@@ -38,7 +38,7 @@ export class LumberjackLogFormatter<TPayload extends LumberjackLogPayload | void
  }
 
  private createFormattingErrorLog(formatError: unknown, log: LumberjackLog<TPayload>): LumberjackLog<TPayload> {
- const formattingErrorMessage = (formatError as Error).message || String(formatError);
+ const formattingErrorMessage = (formatError as Error).message ?? String(formatError);
 
  return {
  scope: 'LumberjackLogFormattingError',

packages/ngworker/lumberjack/src/lib/logging/lumberjack-logger.builder.ts

@@ -22,7 +22,7 @@ export class LumberjackLoggerBuilder<TPayload extends LumberjackLogPayload | voi
  message: this.message,
  scope: this.scope,
  createdAt: this.time.getUnixEpochTicks(),
- payload: (payloadArg[0] as TPayload) || this.payload,
+ payload: (payloadArg[0] as TPayload) ?? this.payload,
  });
  };
  }