v1.4.8 ​Stereo to mono serialization

Stereo to mono serialization and bug-fixes.

• New serialize selected action, any selected samples that are stereo files, will have their stereo channels serialized to mono, by Left/Right, Side/Mid, or Left/Right/Side/Mid.
• Dual mono exports setting error.
• Prevent find crossing point on edit panel.
• Issue with auto-naming of duplicate files/same file imported multiple times.
• Trim-right on sample that had slices removed threw unhandled error.
• Merge/Blend panel mono/pan controls not consistently updating UI when clicked.
• Fixed rendering bugs with Firefox 118.x when page zoom higher than 100%.
• Removed arcs in svg for better representation of the waveform graphics.
• Ctrl + Click on the 'add samples' icon will add a blank sample (8 samples in length) to the list to use for padding chains.

Archived live release: https://digichain.brianbar.net/1.4.8/