[Build] Move off of all unnecessary loaders for webpack 5

[unlikelyzero]

Summary

We upgraded to webpack 5 and now have some dependencies that are no longer necessary.

Let's card up the work necessary to remove all unneeded dependencies and update our webpack config:

• raw loader (done)
• html loader
• url loader (not used)
• File loader

Investigate the following loaders: -- This will be done in issue #5013

• "resolve-url-loader": "4.0.0",
• "babel-loader": "8.2.3",
• "css-loader": "4.0.0",
• "exports-loader": "0.7.0",
• "imports-loader": "0.8.0",
• "karma-sourcemap-loader": "0.3.8",
• "resolve-url-loader": "4.0.0",
• "sass-loader": "12.4.0",
• "style-loader": "^1.0.1",

Vue Loader is a problem child:

• "vue-loader": "15.9.8" To be filed separately

[shefalijoshi]

Moving out the investigation to a separate task.

[unlikelyzero]

Testing Notes

Verify that openmct can be built locally and that the error messages generated during build time make sense

[michaelrogers]

Successfully built Open MCT without errors messages on 2022-04-04.

[khalidadil]

^ same, in testathon on 04/04/2022