@thunderstore/thunderstore-api: improve error handling

Sentry handling doesn't need to be done on package level since we're
doing it on app level. Try to throw useful error messages, taking into
account I don't how much of the error stack is available on Sentry or
NextJs logs this way.

Refs no ticket

packages/thunderstore-api/src/apiFetch.ts

@@ -1,8 +1,5 @@
 import { RequestConfig } from "./index";
 
-/**
- * TODO: plug Sentry to error handling.
- */
 export async function apiFetch(
   config: RequestConfig,
   path: string,
@@ -16,19 +13,23 @@ export async function apiFetch(
   try {
     response = await fetch(url, settings);
   } catch (e) {
-    throw new Error(e instanceof Error ? e.message : "Data fetching error");
+    const msg = e instanceof Error ? e.message : "Unknown error";
+    throw new Error(`Fetching ${url.href}: ${msg}`);
   }
 
   if (!response.ok) {
-    throw new Error(`${response.status}: ${response.statusText}`);
+    const prefix = `Fetching ${url.href}`;
+    throw new Error(`${prefix}: (${response.status}) ${response.statusText}`);
   }
 
   let values;
 
   try {
     values = await response.json();
   } catch (e) {
-    throw new Error(e instanceof Error ? e.message : "Deserialization error");
+    const prefix = `Deserializing response from ${url.href}`;
+    const msg = e instanceof Error ? e.message : "Unknown error";
+    throw new Error(`${prefix}: ${msg}`);
   }
 
   return values;