Replace "non-.NET" phrasing across docs

[davidfowl]

Multiple docs use "non-.NET" to describe multi-language scenarios (e.g., "Using with non-.NET applications"). This framing is exclusionary and should be replaced with positive language like "multi-language" or "TypeScript, Python, and JavaScript."

Files affected

Integration host docs (section headings "Using with non-.NET applications"):

• integrations/databases/mongodb/mongodb-host.mdx
• integrations/databases/milvus/milvus-host.mdx
• integrations/databases/sql-server/sql-server-host.mdx
• integrations/databases/sqlite/sqlite-host.mdx
• integrations/databases/elasticsearch/elasticsearch-host.mdx
• integrations/databases/postgres/postgres-host.mdx (5 occurrences)
• integrations/databases/qdrant/qdrant-host.mdx
• integrations/databases/efcore/oracle/oracle-host.mdx
• integrations/caching/redis/redis-host.mdx

Other docs:

• whats-new/aspire-13.mdx (2 occurrences)
• whats-new/aspire-13-2.mdx
• community/videos.mdx
• app-host/executable-resources.mdx