Removed old PHP code, migrated to Python and Flask

Update .dockerignore, .env, and 503 more files...

website/sidebar.py

@@ -0,0 +1,35 @@
+from dataclasses import dataclass, field
+from typing import Optional
+
+import yaml
+
+
+@dataclass
+class SidebarEntry:
+    title_key: str
+    icon: str
+    active_id: str
+    abs_href: Optional[str] = field(default=None)
+    raw_href: Optional[str] = field(default=None)
+
+
+__SIDEBAR_ENTRIES: list[Optional[SidebarEntry]] = list()
+
+
+def reload_sidebar_entries(definition_file: str) -> None:
+    global __SIDEBAR_ENTRIES
+
+    __SIDEBAR_ENTRIES = list()
+
+    with open(definition_file, 'r') as f:
+        raw_sidebar_entries = yaml.safe_load(f)
+
+    for raw_sidebar_entry in raw_sidebar_entries:
+        try:
+            __SIDEBAR_ENTRIES.append(SidebarEntry(**raw_sidebar_entry))
+        except Exception:
+            __SIDEBAR_ENTRIES.append(None)
+
+
+def get_sidebar_entries() -> list[Optional[SidebarEntry]]:
+    return __SIDEBAR_ENTRIES