fix: Pattern source code not being loaded correctly from project files

lib/libimhex/source/api/project_file_manager.cpp

@@ -101,6 +101,8 @@ namespace hex {
             tar.write(MetadataPath, metadataContent);
         }
 
+        ImHexApi::Provider::resetDirty();
+
         return result;
     }
 

plugins/builtin/source/content/views/view_pattern_editor.cpp

@@ -303,6 +303,7 @@ namespace hex::plugin::builtin {
                 if (!this->m_syncPatternSourceCode)
                     ProviderExtraData::get(provider).patternLanguage.sourceCode = sourceCode;
 
+                if (provider == ImHexApi::Provider::get())
                     this->m_textEditor.SetText(sourceCode);
 
                 return true;