Fix/misc issues tutorial

[Thiemann96]

• before user has not answered all questions you can not finish the tutorial
• blockquote styling
• table styling
• add previous and next button

[github-actions]

Tests

Test Name	Status	Flaky	Duration
Blockly Editor Page Tests [Blockly] visits the editor page	✅		2.5s
Blockly Editor Page Tests [Blockly] visits the tutorial page	✅		578ms
Blockly Editor Page Tests [Blockly] visits the gallery page	❌		4.5s
Blockly Editor Page Tests [Blockly] visits the faq page	✅		2.3s
Blockly Editor Page Tests [Blockly] visits the settings page	✅		412ms
Blockly Editor Page Tests [Blockly] visits the login page	✅		336ms
Blockly Editor Page Tests [Blockly] navigates to tutorial and back	✅		9.4s
Blockly Editor Page Tests [Blockly] selects senseBox ESP	✅		1.4s
Blockly Editor Page Tests [Blockly] selects senseBox MCU	✅		1.2s
Blockly Editor Page Tests [Blockly] selects senseBox Mini	✅		1.2s
Blockly Editor Page Tests [Blockly] changes the language in settings and verifies via headline	✅		889ms
Blockly Editor Page Tests [Blockly] changes to tablet mode and compiles code for esp32	✅		7.2s
Blockly Editor Page Tests [Blockly] changes to tablet mode and compiles code for MCU	✅		3.7s
Blockly Editor Page Tests [Blockly] compiles code	✅		6.0s
Code Editor Page Tests [CodeEditor] visits the code editor page	✅		2.0s
Code Editor Page Tests [CodeEditor] selects senseBox ESP	✅		681ms
Code Editor Page Tests [CodeEditor] compiles code	✅		976ms
Code Editor Page Tests [CodeEditor] opens reset dialog	✅		861ms
Code Editor Page Tests [CodeEditor] fetches libraries	✅		1.9s
End-to-End Tutorial Flow 1. registers a new user	❌		6.8s
End-to-End Tutorial Flow 2. logs in with the registered user	❌		5.6s
End-to-End Tutorial Flow 3. navigates to /tutorial/builder	❌		5.5s
End-to-End Tutorial Flow 4. creates a new tutorial via UI	❌		5.5s
End-to-End Tutorial Flow 5. views the created tutorial	❌		4.5s
End-to-End Tutorial Flow 6. edits the tutorial title and saves	❌		5.4s
End-to-End Tutorial Flow 7. deletes the test tutorial	❌		5.5s
End-to-End Tutorial Flow 8. deletes the test user account	❌		836ms

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[github-actions]

Tests

Test Name	Status	Flaky	Duration
Blockly Editor Page Tests [Blockly] visits the editor page	✅		2.4s
Blockly Editor Page Tests [Blockly] visits the tutorial page	✅		558ms
Blockly Editor Page Tests [Blockly] visits the gallery page	❌		4.5s
Blockly Editor Page Tests [Blockly] visits the faq page	✅		1.9s
Blockly Editor Page Tests [Blockly] visits the settings page	✅		391ms
Blockly Editor Page Tests [Blockly] visits the login page	✅		323ms
Blockly Editor Page Tests [Blockly] navigates to tutorial and back	✅		10.8s
Blockly Editor Page Tests [Blockly] selects senseBox ESP	✅		1.3s
Blockly Editor Page Tests [Blockly] selects senseBox MCU	✅		1.2s
Blockly Editor Page Tests [Blockly] selects senseBox Mini	✅		1.1s
Blockly Editor Page Tests [Blockly] changes the language in settings and verifies via headline	✅		884ms
Blockly Editor Page Tests [Blockly] changes to tablet mode and compiles code for esp32	✅		6.6s
Blockly Editor Page Tests [Blockly] changes to tablet mode and compiles code for MCU	✅		3.6s
Blockly Editor Page Tests [Blockly] compiles code	✅		5.6s
Code Editor Page Tests [CodeEditor] visits the code editor page	✅		1.9s
Code Editor Page Tests [CodeEditor] selects senseBox ESP	✅		721ms
Code Editor Page Tests [CodeEditor] compiles code	✅		941ms
Code Editor Page Tests [CodeEditor] opens reset dialog	✅		847ms
Code Editor Page Tests [CodeEditor] fetches libraries	✅		1.7s
End-to-End Tutorial Flow 1. registers a new user	❌		6.8s
End-to-End Tutorial Flow 2. logs in with the registered user	❌		5.5s
End-to-End Tutorial Flow 3. navigates to /tutorial/builder	❌		5.4s
End-to-End Tutorial Flow 4. creates a new tutorial via UI	❌		5.4s
End-to-End Tutorial Flow 5. views the created tutorial	❌		4.5s
End-to-End Tutorial Flow 6. edits the tutorial title and saves	❌		5.4s
End-to-End Tutorial Flow 7. deletes the test tutorial	❌		5.5s
End-to-End Tutorial Flow 8. deletes the test user account	❌		686ms

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