Collapse additional children in Commands Toolbar

Vaibhav Malikrequested to merge
VaibhavMalik4187/inkscape:command-toolbar-min-size-fix into 1.4.x

This commit marks four additional children of the Commands Toolbar as collapsible widgets. This reduces the toolbar's overall height, allowing the Inkscape window to fit on smaller screens.

Before:

Screenshot_2025-01-13_at_10.51.10_AM

After:

Screenshot_2025-01-13_at_10.52.07_AM

Fixes: #4987 (closed)

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