fix(srt): handle undefined/null text in malformed SRT files (#1990)

* fix(cli/srt): filter out undefined/null subtitle entries during push and pull operations

* fix(cli/srt): add warning for skipping undefined/null subtitle entries during push

* refactor(srt): remove misleading warnings for filtered undefined entries

Warnings were misleading since entries get filled from sourceData in final merge.
Final output is correct, so silent filtering is appropriate.

Author: cherkanovart

.changeset/fix-srt-undefined.md

@@ -0,0 +1,5 @@
+---
+"lingo.dev": patch
+---
+
+fix(srt): filter undefined/null subtitle entries during push

packages/cli/src/cli/loaders/srt.ts

@@ -24,15 +24,7 @@ export default function createSrtLoader(): ILoader<
 
     async push(locale, payload) {
       const output = Object.entries(payload)
-        .filter(([key, text]) => {
-          if (text === undefined || text === null) {
-            console.warn(
-              `⚠️  [SRT] Skipping subtitle entry ${key} - text is ${text === undefined ? "undefined" : "null"}`,
-            );
-            return false;
-          }
-          return true;
-        })
+        .filter(([, text]) => text !== undefined && text !== null)
         .map(([key, text]) => {
           const [id, timeRange] = key.split("#");
           const [startTime, endTime] = timeRange.split("-");