Harmonize tsconfig for frontend and server.

server/shared/utils/json.ts

@@ -1,7 +1,7 @@
 /**
  * Utility functions for JSON.
  */
-import { isJSONValue, JSONObject, JSONValue } from "../types";
+import { isJSONValue, type JSONObject, type JSONValue } from "../types";
 
 /**
  * Parses the given `string` and converts it into a {@link JSONValue}.

server/shared/utils/node.ts

@@ -1,7 +1,7 @@
 /**
  * Utility functions for node related data.
  */
-import { MAC, MapId } from "../types";
+import type { MAC, MapId } from "../types";
 
 /**
  * Converts the MAC address of a Freifunk node to an id representing it on the community's node map.

server/shared/utils/strings.ts

@@ -1,7 +1,7 @@
 /**
  * Utility functions all around strings.
  */
-import { isInteger, MAC } from "../types";
+import { isInteger, type MAC } from "../types";
 
 /**
  * Trims the given `string` and replaces multiple whitespaces by one space each.

server/shared/utils/time.ts

@@ -1,7 +1,7 @@
 /**
  * Utility functions for "wibbly wobbly timey wimey" stuff.
  */
-import { UnixTimestampMilliseconds, UnixTimestampSeconds } from "../types";
+import type { UnixTimestampMilliseconds, UnixTimestampSeconds } from "../types";
 
 /**
  * Converts an {@link UnixTimestampMilliseconds} to an {@link UnixTimestampSeconds} rounding down.