Blogging: Replace System.Drawing with ImageSharp package

[EngincanV]

Resolves #10081

[codecov]

Codecov Report

Merging #10494 (491f1a7) into dev (a0a4321) will decrease coverage by 0.00%.
The diff coverage is 0.00%.

@@            Coverage Diff             @@
##              dev   #10494      +/-   ##
==========================================
- Coverage   54.79%   54.79%   -0.01%     
==========================================
  Files        2643     2645       +2     
  Lines       75381    75384       +3     
==========================================
  Hits        41306    41306              
- Misses      34075    34078       +3     

Impacted Files	Coverage Δ
...cy/Pages/Abp/MultiTenancy/TenantSwitchModal.cshtml	0.00% <ø> (ø)
...Pages/Abp/MultiTenancy/TenantSwitchModal.cshtml.cs	0.00% <ø> (ø)
...I/Packages/Bootstrap/BootstrapScriptContributor.cs	0.00% <0.00%> (ø)
...UI/Packages/Bootstrap/BootstrapStyleContributor.cs	0.00% <0.00%> (ø)
...es/DatatablesNet/DatatablesNetScriptContributor.cs	0.00% <ø> (ø)
...atablesNetBs5/DatatablesNetBs5ScriptContributor.cs	0.00% <0.00%> (ø)
...tatablesNetBs5/DatatablesNetBs5StyleContributor.cs	0.00% <0.00%> (ø)
...Packages/Popper/PopperJsScriptBundleContributor.cs	0.00% <0.00%> (ø)
...vc/UI/Packages/Select2/Select2ScriptContributor.cs	0.00% <ø> (ø)
...red/Bundling/SharedThemeGlobalScriptContributor.cs	0.00% <ø> (ø)
... and 26 more

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