Feat(Fortune): Preview result url (#62)

* Feat(Fortune): Support preview result depends on url params

* Feat(Fortune): Specify commit hash in preview result to ensure event consistency

* Feat(Fortune): Add copy preview url button

* Feat(Fortune): Support theme color for copy preview button

* Impr(Fortune): Make UI looks better

* Docs(CONTRIBUTING): Add missing theme field

scripts/check-theme.py

@@ -117,6 +117,7 @@ def check_theme(theme, idx: int):
         ("button-hover-color", str),
         ("toggle-theme-button-color", str),
         ("copy-result-button-color", str),
+        ("copy-preview-result-url-button-color", str),
         ("date-color", str),
         ("special-event-color", str),
     ]