Motivation

• Translation providers (Google/Baidu/etc.) sometimes alter or inject spaces into placeholder tokens, which caused only the first link to be restored or left unresolved markers like __SG_LINK_0__ in translated text.
• The change aims to make client-side masking/restoration of link placeholders resilient to provider-side token mutation so all links remain clickable after translation.

Description

• Added a helper findPlaceholderRange that first tries exact match and then uses a regex tolerant to inserted whitespace around underscores to locate mutated placeholders in translated output.
• Removed surrounding spaces from the placeholder token when masking (use "__SG_LINK_n__" instead of " __SG_LINK_n__ ") to reduce provider-side splitting.
• Restored link visible text using the located placeholder ranges and remapped entity offsets via the existing cloneLinkEntity so original link entities remain clickable.
• Changes made in TMessagesProj/src/main/java/org/telegram/ui/Components/TranslateAlert2.java and added imports for Matcher and Pattern.

Testing

• Attempted to compile with ./gradlew -q :TMessagesProj:compileDebugJavaWithJavac to validate Java changes, but the build failed in this environment with Unsupported class file major version 69, an unrelated Java/Gradle compatibility issue.
• No additional automated tests were run in this environment due to the compile failure; the change is small and limited to placeholder handling logic.

Codex Task