Cfg: Add a setting to configure if the local file system is available (#83616)

* Introduce environment.local_filesystem_available

* Only show TLS client cert, client key, client ca when local_filesystem_available is true

* Rename LocalFSAvailable to LocalFileSystemAvailable

packages/grafana-data/src/types/config.ts

@@ -226,6 +226,7 @@ export interface GrafanaConfig {
   sqlConnectionLimits: SqlConnectionLimits;
   sharedWithMeFolderUID?: string;
   rootFolderUID?: string;
+  localFileSystemAvailable?: boolean;
 
   // The namespace to use for kubernetes apiserver requests
   namespace: string;

packages/grafana-runtime/src/config.ts

@@ -171,6 +171,7 @@ export class GrafanaBootConfig implements GrafanaConfig {
   disableFrontendSandboxForPlugins: string[] = [];
   sharedWithMeFolderUID: string | undefined;
   rootFolderUID: string | undefined;
+  localFileSystemAvailable: boolean | undefined;
 
   constructor(options: GrafanaBootConfig) {
     this.bootData = options.bootData;