docs: how to prevent closing challenge upon back press

[CAMOBAP]

• Challenge Closed error with passive key #131

[github-actions]

Diffuse report:

OLD: sdk-main.aar
NEW: sdk-pr.aar

 AAR      │ old       │ new       │ diff  
──────────┼───────────┼───────────┼───────
      jar │  50.1 KiB │  50.1 KiB │ +41 B 
 manifest │     457 B │     457 B │   0 B 
      res │  78.3 KiB │  78.3 KiB │   0 B 
    other │  75.8 KiB │  75.8 KiB │   0 B 
──────────┼───────────┼───────────┼───────
    total │ 204.5 KiB │ 204.6 KiB │ +41 B 

 JAR     │ old │ new │ diff      
─────────┼─────┼─────┼───────────
 classes │  37 │  37 │ 0 (+0 -0) 
 methods │ 500 │ 500 │ 0 (+0 -0) 
  fields │ 160 │ 160 │ 0 (+0 -0)

AAR

 size     │ diff  │ path          
──────────┼───────┼───────────────
 50.1 KiB │ +41 B │ ∆ classes.jar 
──────────┼───────┼───────────────
 50.1 KiB │ +41 B │ (total)

[github-actions]

Benchmark report:

Test name	Time ms. (median)	Allocations (median)
com.hcaptcha.sdk.HCaptchaBenchmarkTest.EMULATOR_UNLOCKED_benchmarkInvisibleVerification	+144.27	0
com.hcaptcha.sdk.HCaptchaBenchmarkTest.EMULATOR_UNLOCKED_benchmarkInvisibleVerificationColdRun	+147.81	+95
com.hcaptcha.sdk.HCaptchaBenchmarkTest.EMULATOR_UNLOCKED_benchmarkInvisibleSetup	-1.06	+88
com.hcaptcha.sdk.HCaptchaDebugInfoTest.EMULATOR_UNLOCKED_benchmarkDebugInfo	+7.52	+2
com.hcaptcha.sdk.HCaptchaDebugInfoTest.EMULATOR_UNLOCKED_benchmarkDebugSys	+16.37	0
com.hcaptcha.sdk.HCaptchaWebViewHelperTest.EMULATOR_UNLOCKED_benchmarkWebViewLoad	+104.78	+94

[sonarqubecloud]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

0.0% Coverage
0.0% Duplication

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