DEV: Correct typos and spelling mistakes (#12812)

Over the years we accrued many spelling mistakes in the code base. 

This PR attempts to fix spelling mistakes and typos in all areas of the code that are extremely safe to change 

- comments
- test descriptions
- other low risk areas

spec/components/image_sizer_spec.rb

@@ -32,7 +32,7 @@ describe ImageSizer do
       @w, @h = ImageSizer.resize(600, 123)
     end
 
-    it 'returns the maxmimum width if larger than the maximum' do
+    it 'returns the maximum width if larger than the maximum' do
       expect(@w).to eq(500)
     end
 
@@ -48,7 +48,7 @@ describe ImageSizer do
       @w, @h = ImageSizer.resize(123, 600)
     end
 
-    it 'returns the maxmimum height if larger than the maximum' do
+    it 'returns the maximum height if larger than the maximum' do
       expect(@h).to eq(500)
     end