Sonic Visualiser: alle weergawes en ouer weergawes

Changes in Sonic Visualiser v5.2.1 (21 Mar 2025) since the previous release 5.2:
- Fix hang on exporting an image or SVG during interactive use
- Fix failure to highlight some points on mouse-over when using a
hi-dpi display

• Add option to switch off the interpolation used in the waveform
view for zoom levels closer than one pixel per frame: sometimes it
can be an unnecessary distraction. With interpolation switched off,
the individual samples are shown as unconnected points instead

• Make it possible to toggle segment colouring in the segmentation
view of the time value layer, as well as toggling segment division
lines

• When importing CSV files, if a column heading indicates a likely
unit for the column, use it by default; also remember last user
settings for the import dialog

• Ensure the Choose Default Template option on the templates menu can
be reached even when no file is loaded

• Give the spectrum layer the same effective scale range as it had
before the dB scale fix in v4.4, fixing the accidental halving of
the visible range for that layer in v4.4

• Fix hang when opening two plugin parameter dialogs at once

• Fix crash when rendering slice or spectrum layers scrolled to
earlier than the start of the audio or later than the end

• Fix crash when more than one audio file is supplied at the command
line with a default session template that requires regenerating one
or more feature extraction layers and layer generation produces an
error or warning

• Fix failure to exit fully if the window is closed before plugin
scan is complete at startup