Add ability to click and drag synteny area of synteny view to side scroll

[cmdcolin]

add on to previous functionality to wheel/touchpad side scroll the synteny view

[codecov]

Codecov Report

Attention: 137 lines in your changes are missing coverage. Please review.

Comparison is base (d0df21b) 63.27% compared to head (0913ac1) 63.13%.

Files	Patch %	Lines
...ntenyDisplay/components/LinearSyntenyRendering.tsx	3.47%	111 Missing ⚠️
...arSyntenyDisplay/components/SyntenyContextMenu.tsx	0.00%	26 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #4134      +/-   ##
==========================================
- Coverage   63.27%   63.13%   -0.14%     
==========================================
  Files        1061     1062       +1     
  Lines       30989    31022      +33     
  Branches     7382     7388       +6     
==========================================
- Hits        19608    19587      -21     
- Misses      11209    11264      +55     
+ Partials      172      171       -1     

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