feat(interactive): Increase the reserved slots for small graphs

[zhanglei1949]

We currently allocate an additional 1/4 of the required space when opening a graph, resulting in a smaller reserved space for smaller graphs. To address this, we are increasing the minimum capacity for vertex storage to 4096.

Fix #4105

[github-actions[bot]]

Please check the preview of the documentation changes at https://8a6ea9ba.graphscope-docs-preview.pages.dev

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 58.78%. Comparing base (0aa119e) to head (0b3230f). Report is 4 commits behind head on main.

Additional details and impacted files

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