feat(influxdb3): add 'partial writes' tag to distributed troubleshooting pages

Add 'partial writes' tag to frontmatter for better content discoverability:
- content/influxdb3/cloud-dedicated/write-data/troubleshoot.md
- content/influxdb3/cloud-serverless/write-data/troubleshoot.md
- content/influxdb3/clustered/write-data/troubleshoot.md

This helps users find information about partial write scenarios across InfluxDB 3 distributed editions.

content/influxdb3/cloud-dedicated/write-data/troubleshoot.md

@@ -10,7 +10,7 @@ menu:
   influxdb3_cloud_dedicated:
     name: Troubleshoot issues
     parent: Write data
-influxdb3/cloud-dedicated/tags: [write, line protocol, errors]
+influxdb3/cloud-dedicated/tags: [write, line protocol, errors, partial writes]
 related:
   - /influxdb3/cloud-dedicated/get-started/write/
   - /influxdb3/cloud-dedicated/reference/syntax/line-protocol/

content/influxdb3/cloud-serverless/write-data/troubleshoot.md

@@ -10,7 +10,7 @@ menu:
   influxdb3_cloud_serverless:
     name: Troubleshoot issues
     parent: Write data
-influxdb3/cloud-serverless/tags: [write, line protocol, errors]
+influxdb3/cloud-serverless/tags: [write, line protocol, errors, partial writes]
 related:
   - /influxdb3/cloud-serverless/get-started/write/
   - /influxdb3/cloud-serverless/reference/syntax/line-protocol/

content/influxdb3/clustered/write-data/troubleshoot.md

@@ -11,7 +11,7 @@ menu:
   influxdb3_clustered:
     name: Troubleshoot issues
     parent: Write data
-influxdb3/clustered/tags: [write, line protocol, errors]
+influxdb3/clustered/tags: [write, line protocol, errors, partial writes]
 related:
   - /influxdb3/clustered/get-started/write/
   - /influxdb3/clustered/reference/syntax/line-protocol/