Replace makeBlob with new Blob

[wch]

The makeBlob function is no longer needed, since Blob has been available in all major browsers for a long time.

This PR was prompted by errors @jcheng5 encountered with a recent version of TypeScript, 4.8.4. As of version 4.4, MSBlobBuilder was removed from the types, which caused compilation errors.

This PR upgrades to TS 4.8.4, which resulted in a number of other packages needing to be upgraded.

[jcheng5]

This looks awesome! By which I mean, I really want this to happen, but am not qualified to actually review the PR (clearly, since I spent a ton of time today trying to accomplish exactly this and got nowhere).

[schloerke]

Why were these added? Example?

[wch]

One of the eslint package updates caused it to throw errors for existing code:

/.../shiny/srcts/src/bindings/input/fileinput.ts
   28:5  error  Object Literal Method name `dragenter.draghover` must match one of the following formats: camelCase        @typescript-eslint/naming-convention
   33:5  error  Object Literal Method name `dragleave.draghover` must match one of the following formats: camelCase        @typescript-eslint/naming-convention
   41:5  error  Object Literal Method name `dragover.draghover` must match one of the following formats: camelCase         @typescript-eslint/naming-convention
   44:5  error  Object Literal Method name `drop.draghover` must match one of the following formats: camelCase             @typescript-eslint/naming-convention
   59:5  error  Object Literal Method name `draghover:enter.draghover` must match one of the following formats: camelCase  @typescript-eslint/naming-convention
   64:5  error  Object Literal Method name `draghover:leave.draghover` must match one of the following formats: camelCase  @typescript-eslint/naming-convention
   69:5  error  Object Literal Method name `draghover:drop.draghover` must match one of the following formats: camelCase   @typescript-eslint/naming-convention
  257:7  error  Object Literal Method name `draghover:enter.draghover` must match one of the following formats: camelCase  @typescript-eslint/naming-convention
  261:7  error  Object Literal Method name `draghover:leave.draghover` must match one of the following formats: camelCase  @typescript-eslint/naming-convention
  267:7  error  Object Literal Method name `draghover:drop.draghover` must match one of the following formats: camelCase   @typescript-eslint/naming-convention

/.../shiny/srcts/src/imageutils/createBrush.ts
  393:9  error  Object Literal Property name `background-color` must match one of the following formats: camelCase  @typescript-eslint/naming-convention
  395:9  error  Object Literal Property name `pointer-events` must match one of the following formats: camelCase    @typescript-eslint/naming-convention
  408:9  error  Object Literal Property name `border-left` must match one of the following formats: camelCase       @typescript-eslint/naming-convention
  409:9  error  Object Literal Property name `border-right` must match one of the following formats: camelCase      @typescript-eslint/naming-convention
  413:9  error  Object Literal Property name `border-top` must match one of the following formats: camelCase        @typescript-eslint/naming-convention
  414:9  error  Object Literal Property name `border-bottom` must match one of the following formats: camelCase     @typescript-eslint/naming-convention

/.../shiny/srcts/src/utils/index.ts
   8:5  error  Object Literal Property name `&` must match one of the following formats: camelCase  @typescript-eslint/naming-convention
   9:5  error  Object Literal Property name `<` must match one of the following formats: camelCase  @typescript-eslint/naming-convention
  10:5  error  Object Literal Property name `>` must match one of the following formats: camelCase  @typescript-eslint/naming-convention
  12:5  error  Object Literal Property name `"` must match one of the following formats: camelCase  @typescript-eslint/naming-convention
  13:5  error  Object Literal Property name `'` must match one of the following formats: camelCase  @typescript-eslint/naming-convention
  14:5  error  Object Literal Property name `/` must match one of the following formats: camelCase  @typescript-eslint/naming-convention

[schloerke]

I'm leaning towards we disable this lints for the two files or for the lines within each file, rather than globally.

// eslint-disable @typescript-eslint/naming-convention

or

// eslint-disable-next-line @typescript-eslint/naming-convention

[wch]

I learned that a rule can be disabled within a scope with the following (note that it needs /*-style comments, and not //):

/* eslint-disable @typescript-eslint/naming-convention */

So I've used that instead.