Sort matrix sets

[JakeWags]

Does this PR close any open issues?

Closes #10

Give a longer description of what this PR addresses and why it's needed

This PR adds the ability to sort the matrix header sets via Alphabetical, Size - Ascending, and Size - Descending. This is done via context menu. (( Drag & Drop to be added after #110 , see #137 ))

Provide pictures/videos of the behavior before and after these changes (optional)

https://user-images.githubusercontent.com/35744963/227030280-afd05f73-d705-4175-affe-8848d7558705.mov

After actions taken in above video:

JSON grammar: Note "sortVisibleBy"

{
  "firstAggregateBy": "None",
  "firstOverlapDegree": 2,
  "secondAggregateBy": "None",
  "secondOverlapDegree": 2,
  "sortVisibleBy": "Size - Ascending",
  "sortBy": "Cardinality",
  "filters": {
    "maxVisible": 3,
    "minVisible": 0,
    "hideEmpty": true
  },
  "visibleSets": [
    "Set_Action",
    "Set_Adventure",
    "Set_Children",
    "Set_Comedy",
    "Set_Crime",
    "Set_Drama",
    "Set_Documentary",
    "Set_SciFi",
    "Set_Romance"
  ],
  "visibleAttributes": [
    "ReleaseDate",
    "AvgRating",
    "Watches"
  ],
  "bookmarkedIntersections": [],
  "plots": {
    "scatterplots": [],
    "histograms": [],
    "wordClouds": []
  }
}

Are there any additional TODOs before this PR is ready to go?

TODOs:

• [X] Local Testing

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[JakeWags]

@filemon-mateus Note the grammar change in the JSON file. Will need to update alt-text gen