Remove sqlite-viewer and using database client (#31223)

sqlite-viewer can not edit sqlite.
database client can connect to almost all common databases, which is
very useful I think. Of cause, it can edit sqlite.

https://marketplace.visualstudio.com/items?itemName=cweijan.vscode-database-client2

And for using sqlite, sqlite3 is required. So also added a new feature:
https://github.com/warrenbuckley/codespace-features
found from: https://containers.dev/features

(cherry picked from commit fc641b3a28300e13c822140556eca8d00f2b5196)

Conflicts:
.devcontainer/devcontainer.json
trivial context conflict because AZure blob support was not added

.devcontainer/devcontainer.json

···
     "ghcr.io/devcontainers-contrib/features/poetry:2": {},
     "ghcr.io/devcontainers/features/python:1": {
       "version": "3.12"
-    }
+    },
+    "ghcr.io/warrenbuckley/codespace-features/sqlite:1": {}
   },
   "customizations": {
     "vscode": {
···
         "Vue.volar",
         "ms-azuretools.vscode-docker",
         "vitest.explorer",
-        "qwtel.sqlite-viewer",
-        "GitHub.vscode-pull-request-github"
+        "cweijan.vscode-database-client2",
+        "GitHub.vscode-pull-request-github",
+        "Azurite.azurite"
       ]
     }
   },

.gitpod.yml

···
     - Vue.volar
     - ms-azuretools.vscode-docker
     - vitest.explorer
-    - qwtel.sqlite-viewer
+    - cweijan.vscode-database-client2
     - GitHub.vscode-pull-request-github
 
 ports: