[TASK] Fix Workspace Kinds table image proportions

[jenny-s51]

Certification

• I certify I am an Epic Owner for Kubeflow Notebooks 2.0 and expected to create planning-related issues.

Description

UX feedback per @tobiastal - Image proportions in the Workspace Kinds table currently don't match those in the Workspaces table.

Current

Expected logo proportions (see "Kind" column)

Acceptance Criteria

• Image column proportions in Workspace Kinds table match those in Workspaces table
• Images display consistently across both tables

[jenny-s51]

/area frontend
/area v2

[jenny-s51]

/assign