docs: Improve documentation at Klondike Tutorial Step 5

[nickf2k]

Description

This PR for solving the issue #3076

1. What would I do to improve this tutorial:

• Add missing content, eliminate confusing interruptions, and include omitted code sections.
• Incorporate images and example animations to illustrate our objectives.
• Introduce additional sections where necessary (though the final source code remains intact).
• Provide logical transitions between sections.
• Address why we need to follow specific approaches and not others.
• Include links and information about general game development concepts (such as the concept of "seed" in game programming).

2. Contents I will add or modify:

• The Klondike draw
• Making cards move
• Animating a card-flip
• Model and View
• Ending and restarting the game

I believe these sections are satisfactory, so I won't make any edits to them. I will begin editing from the section: A New World.

• Immediately after the Start and restart actions section, I will provide an explanation of the "KlondikeWorld" class. Consequently, the adjustment of the "KlondikeGame" class is merely a necessary step when migrating the onLoad() function to KlondikeWorld, rendering the "A stripped-down KlondikeGame class" section redundant.

• The section Using a Random Number Generator seed appears reasonable. However, I intend to supplement more references to this definition of "seed." If you have any documents or suggestions on this topic, please provide further information. Otherwise, I will utilize the following link: Link to Reddit.

• The section Introducing the new KlondikeWorld class was previously covered, hence it will be omitted here. Please note that I will enrich the previous instruction with additional details.

• Button: I will retain and expand upon this section as it lacks significant information.

• Anchors and coordinates: This section may be considered supplementary information within the Button section. Therefore, I will incorporate and merge it into the Button section.

• The deal() method: I will maintain this section in its current position, perhaps making minor sentence edits or none at all.

• More animations of moves: Similar to the section "The deal() method."

• A graphics glitch: As above.

• Winning the game: I find this section quite comprehensive; hence, I may not make any alterations.

• Ending a game and restarting it: This section lacks crucial details and is rather confusing. I will rewrite it to clarify.

• Have fun button: This section is well-structured; therefore, I may retain it with minor adjustments if necessary.

Checklist

• I have followed the Contributor Guide when preparing my PR.
• I have updated/added tests for ALL new/updated/fixed functionality.
• I have updated/added relevant documentation in docs and added dartdoc comments with ///.
• I have updated/added relevant examples in examples or docs.

Breaking Change?

• Yes, this PR is a breaking change.
• No, this PR is not a breaking change.

Related Issues

This PR solve the issue #3076

[nickf2k]

I am still working there. Please feel free to discuss about this PR

[spydon]

These should only have a single back-tick, tripple back-ticks are for multi-line code

[nickf2k]

Sure! Let me change this

[spydon]

@nickf2k any update on this?