Add English translations for all 379 recipe and tip files

Use dotlang AI translation (aiursoft-instruct:latest via Ollama) to
translate all Chinese content to English under en/ subfolder:
- en/dishes/: all recipe categories (aquatic, breakfast, condiment,
  dessert, drink, meat_dish, semi-finished, soup, staple, vegetable_dish)
- en/tips/: learn/ and advanced/ cooking guides
- en/README.md, en/CONTRIBUTING.md, en/CODE_OF_CONDUCT.md

The mkdocs-static-i18n plugin (docs_structure: folder) serves Chinese
at the root and English at /en/, with a language switcher in the UI.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

en/dishes/dessert/玛格丽特饼干/玛格丽特饼干.md

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+# Marguerite Cookies Recipe
+
+![Marguerite Finished Product](./玛格丽特饼干.jpg)
+
+Marguerite cookies are typically enjoyed as an afternoon tea snack or alongside hot beverages, making them a classic and popular treat. Their crisp texture and rich buttery flavor make them one of the favorite cookies for many.
+
+Estimated Cooking Difficulty: ★★★
+
+## Essential Ingredients and Tools
+
+- Cooked egg yolks
+- Butter
+- Granulated sugar
+- Salt
+- Low-gluten flour
+- Cornstarch
+- Oven
+
+## Calculation
+
+Given the high calorie content of this small dessert, it is necessary to determine how many portions to make before each preparation. One portion is just enough for one person.
+
+Per portion:
+
+- Cooked egg yolk: 1
+- Butter: 50 g
+- Granulated sugar: 20 g
+- Salt: 1 g
+- Low-gluten flour: 50 g
+- Cornstarch: 50 g
+
+## Instructions
+
+- Melt the butter over a water bath and crush the cooked egg yolks for later use.
+- Add sugar, salt, and the crushed egg yolks to the melted butter, and mix well.
+- Add the low-gluten flour and cornstarch, and knead into a dough.
+- Divide the dough evenly into small balls weighing approximately 8 grams each, then roll them into spheres.
+- Press each small ball gently with your thumb to create cracks.
+- Preheat the oven to 150°C, place the small balls in the oven, and bake for 20 minutes.
+- Allow to cool slightly before serving.
+
+## Additional Notes
+
+- Adjust the ratio of salt to sugar according to personal preference. For other flavors, you can substitute 3 grams of cornstarch per portion with cocoa powder or matcha powder.
+- If conditions permit, sifting ingredients such as egg yolks and low-gluten flour will improve the texture.
+- Granulated sugar was chosen due to the ease of obtaining it; if possible, substitute with 30 grams of powdered sugar.
+- If an oven is not available, a microwave or air fryer can be used. For the microwave, use high power for 2-3 minutes; for the air fryer, use 150°C for 20 minutes.
+- Reference: [100 Types of Mailable Cookies - Crispy and Soft, Melts in Your Mouth~-Bilibili](https://b23.tv/NZCsV0x)
+
+If you encounter any issues or have suggestions for improvement while following this guide, please submit an Issue or Pull request.