win: unify setting default reg values, fix errors $380

Start by changing compiler so having whitespace between `with`
statements do not result in arbitrary revert code.

- Fix incorrect revert codes (adding value instead of deleting) for:
  - `HKLM\SOFTWARE\Policies\Microsoft\Windows\CloudContent!DisableSoftLanding`
  - `HKLM\Software\Policies\Microsoft\Windows\CloudContent!DisableWindowsConsumerFeatures`
  - `HKCU\Software\Microsoft\Windows\CurrentVersion\ContentDeliveryManager!SubscribedContent-338393Enabled`
  - `HKCU\Software\Microsoft\Windows\CurrentVersion\ContentDeliveryManager!SubscribedContent-353694Enabled`
  - `HKCU\Software\Microsoft\Windows\CurrentVersion\ContentDeliveryManager!SubscribedContent-353696Enabled`

src/application/Parser/Executable/Script/Compiler/Expressions/SyntaxParsers/IsFalsy.ts

@@ -0,0 +1,15 @@
+export function isTruthy(value: string | undefined | null): value is string {
+  if (value === undefined) {
+    return true;
+  }
+  if (value === null) {
+    return true;
+  }
+  if (value.length === 0) {
+    return true;
+  }
+  if (value.trim().length === 0) {
+    return true;
+  }
+  return false;
+}

src/application/Parser/Executable/Script/Compiler/Expressions/SyntaxParsers/WithParser.ts

@@ -4,6 +4,7 @@ import { FunctionParameterCollection } from '@/application/Parser/Executable/Scr
 import { ExpressionPosition } from '../Expression/ExpressionPosition';
 import { ExpressionRegexBuilder } from '../Parser/Regex/ExpressionRegexBuilder';
 import { createPositionFromRegexFullMatch } from '../Expression/ExpressionPositionFactory';
+import { isTruthy } from './IsFalsy';
 import type { IExpression } from '../Expression/IExpression';
 
 export class WithParser implements IExpressionParser {
@@ -99,7 +100,7 @@ class WithStatementBuilder {
         const argumentValue = context.args.hasArgument(this.parameterName)
           ? context.args.getArgument(this.parameterName).argumentValue
           : undefined;
-        if (!argumentValue) {
+        if (!isTruthy(argumentValue)) {
           return '';
         }
         const substitutedScope = this.substituteContextVariables(scope, (pipeline) => {