fix(api): improve error message with EAI_AGAIN and ECONNRESET

When the clever-tools were using the `request.superagent` from the clever-client,
`EAI_AGAIN` and `ECONNRESET` errors were caught, and message were improved.
When we moved to the common request.fetch, we lost improvment.
This commit adds back the improved messages but in the clever-tools code.

src/models/send-to-api.js

@@ -28,7 +28,19 @@ async function sendToApi (requestParams) {
       }
       return requestParams;
     })
-    .then((requestParams) => request(requestParams, { retry: 1 }));
+    .then((requestParams) => request(requestParams, { retry: 1 }))
+    .catch(processError);
+}
+
+function processError (error) {
+  const code = error.code ?? error?.cause?.code;
+  if (code === 'EAI_AGAIN') {
+    throw new Error('Cannot reach the Clever Cloud API, please check your internet connection.', { cause: error });
+  }
+  if (code === 'ECONNRESET') {
+    throw new Error('The connection to the Clever Cloud API was closed abruptly, please try again.', { cause: error });
+  }
+  throw error;
 }
 
 function sendToWarp10 (requestParams) {
@@ -45,4 +57,4 @@ async function getHostAndTokens () {
   };
 }
 
-module.exports = { sendToApi, sendToWarp10, getHostAndTokens };
+module.exports = { sendToApi, sendToWarp10, getHostAndTokens, processError };