feat: admin maintenance page (#1096)

* fix build typo

* generate types

* setup maintenance api for common cleanup actions

* admin maintenance page

* remove duplicate use-with-caution

mealie/schema/admin/__init__.py

@@ -1,6 +1,7 @@
 # GENERATED CODE - DO NOT MODIFY BY HAND
 from .about import *
 from .backup import *
+from .maintenance import *
 from .migration import *
 from .restore import *
 from .settings import *

mealie/schema/admin/maintenance.py

@@ -0,0 +1,8 @@
+from fastapi_camelcase import CamelModel
+
+
+class MaintenanceSummary(CamelModel):
+    data_dir_size: str
+    log_file_size: str
+    cleanable_images: int
+    cleanable_dirs: int