fix(influxdb3): remove get-started/multi-server.md. It's now under install/

- fix `plugin-dir` (Closes ##6150)

Author: jstirnaman

content/influxdb3/enterprise/get-started/multi-server.md

@@ -10,7 +10,7 @@ menu:
     name: Process data
     identifier: gs-process-data
     parent: Get started
-weight: 104
+weight: 105
 aliases:
   - /influxdb3/enterprise/get-started/process-data/
   - /influxdb3/enterprise/get-started/processing-engine/

content/influxdb3/enterprise/get-started/process.md

@@ -9,7 +9,7 @@ menu:
     name: Query data
     identifier: gs-query-data
     parent: Get started
-weight: 103
+weight: 104
 related:
   - /influxdb3/enterprise/query-data/
   - /influxdb3/enterprise/reference/sql/

content/influxdb3/enterprise/get-started/query.md

@@ -9,7 +9,7 @@ menu:
     name: Write data
     identifier: gs-write-data
     parent: Get started
-weight: 102
+weight: 103
 related:
   - /influxdb3/enterprise/write-data/
   - /influxdb3/enterprise/reference/line-protocol/