Update Lint and TypeScript Settings

[wolfendale]

Changes:

This updates some eslint and TypeScript settings, and resolves some eslint errors, also adds dist to .gitignore

I have removed the webfiles projects from the scope of TypeScript compilation for now as they should likely be their own compiled projects

eslint

• Separates eslint configuration into 3 parts:
  1. eslint for server JavaScript files
  2. eslint for server TypeScript files (this extends 1. but includes extra TypeScript specific rules)
  3. eslint for projects in the webfiles directory
• Addresses all remaining eslint errors, most of which were simple
• A few of the eslint errors related to potential bugs that I've provided a fix for:
  1. this commit adds offset as a skip parameter to the mongo query, and updates the link sent as a response so that pagination should work properly. I assume this is what was intended
  2. src/utils.js was using sharp without importing it, so I've added an import for that

I have also disabled eslint for all projects in the webfiles directory temporarily as the eslint settings that were being applied were likely inappropriate. I have also included a separate eslint configuration file for these projects with an initial attempt as a sensible configuration. However, there are some questions before I can finish this:

1. Are these all one project or should they really have their own separate eslint configs? One reason I'm thinking this is that they all appear to use a variety of globals that I'm not sure are applicable to every one of the projects.
2. What version of ES should we be aiming for in each of these projects?

TypeScript

• Adds required types modules to allow the project to compile properly
• Changes TypeScript config to exclude webfiles sources

Tasks

• I have read and agreed to the Code of Conduct.
• I have read and complied with the contributing guidelines.
• What I'm implementing was an approved issue.
• I have tested all of my changes.

[wolfendale]

Superseded by #65