Add s3-viewer plugin

Signed-off-by: ivgo <ivgo@spreadgroup.com>

microsite/data/plugins/s3-viewer.yaml

@@ -0,0 +1,12 @@
+---
+title: S3 Viewer
+author: Spreadgroup
+authorUrl: https://github.com/spreadshirt
+category: AWS
+description: Visualization of S3 buckets and their contents in file explorer style.
+documentation: https://github.com/spreadshirt/backstage-plugin-s3/
+iconUrl: img/s3-bucket.svg
+npmPackageName: '@spreadshirt/backstage-plugin-s3-viewer'
+tags:
+  - s3
+addedDate: '2023-01-18'

microsite/static/img/s3-bucket.svg

@@ -0,0 +1 @@
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