Update the ESLint dependencies, and also tweak the no-multiple-empty-lines rules

Since multiple empty lines is virtually unused in the code-base, and the few cases that do exist look like "typos", let's enforce greater consistency here; please see https://eslint.org/docs/rules/no-multiple-empty-lines.

src/display/pattern_helper.js

@@ -251,7 +251,6 @@ ShadingIRs.Mesh = {
           }
         }
 
-
         // Rasterizing on the main thread since sending/queue large canvases
         // might cause OOM.
         var temporaryPatternCanvas = createMeshCanvas(bounds, scale, coords,