Select the ligature caret rather than the side bearing when they overlap.
ui: fix Python-free build
Merge pull request #1891 from fontforge/pythonless

ui: fix Python-free build
Merge pull request #1890 from fontforge/prefer_to_edit_side_caret_1

Select the ligature caret rather than the side bearing when they overlap.
Allow metrics window elements to respace.
Merge pull request #1894 from fontforge/metrics_view_adjustments_1

Allow metrics window elements to respace.