External projects moderator database (#5692)

* Begin external projects moderator database frontend

* add copy link button

* begin project page permissions settings

* MEL database backend routes

* include filename in external files

* Hook up frontend external license page to backend

* more work on user-facing external projects stuff

* put user-facing stuff behind feature flag

* prepr

* clippy

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Co-authored-by: aecsocket <aecsocket@tutanota.com>

apps/frontend/src/composables/featureFlags.ts

@@ -47,6 +47,8 @@ export const DEFAULT_FEATURE_FLAGS = validateValues({
 	showDiscoverProjectButtons: false,
 	useV1ContentTabAPI: true,
 	labrinthApiCanary: false,
+	dismissedExternalProjectsInfo: false,
+	modpackPermissionsPage: false,
 } as const)
 
 export type FeatureFlag = keyof typeof DEFAULT_FEATURE_FLAGS