Miscellaneous fixes (#23258)

* render orphaned filter entries as collapsibles instead of the Key/Value editor

* Symlink for various AI files

* change replay confg dialog to platform aware sheet

* change agents title

* fix test

* tweak collapsible

* remove camera ui section in settings

no point to having it anymore with profiles and camera management settings

* fix admin response cache leak to non-admin users via nginx proxy_cache

* add model fetcher endpoint for genai config ui

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Co-authored-by: Nicolas Mowen <nickmowen213@gmail.com>

frigate/genai/__init__.py

@@ -50,9 +50,15 @@ def register_genai_provider(key: GenAIProviderEnum) -> Callable:
 class GenAIClient:
     """Generative AI client for Frigate."""
 
-    def __init__(self, genai_config: GenAIConfig, timeout: int = 120) -> None:
+    def __init__(
+        self,
+        genai_config: GenAIConfig,
+        timeout: int = 120,
+        validate_model: bool = True,
+    ) -> None:
         self.genai_config: GenAIConfig = genai_config
         self.timeout = timeout
+        self.validate_model = validate_model
         self.provider = self._init_provider()
 
     def generate_review_description(