Remove the use of @migtools/lib-ui

[sjd78]

There are a few places where types and functions from @migtools/lib-ui are used in the code. Since we're not maintaining the package anymore, we should drop it.

Additionally, dependencies from @migtools/lib-ui may cause issues. For example:

[sdickers@twilight tackle2-ui]$ npm why axios
axios@0.21.4 peer
node_modules/axios
  peer axios@"^0.21.2" from @migtools/lib-ui@10.0.1
  node_modules/@migtools/lib-ui
    @migtools/lib-ui@"^10.0.1" from @konveyor-ui/client@0.1.0
    client
      @konveyor-ui/client@0.1.0
      node_modules/@konveyor-ui/client
        workspace client from the root project

axios@1.6.8
client/node_modules/axios
  axios@"^1.6.8" from @konveyor-ui/client@0.1.0
  client
    @konveyor-ui/client@0.1.0
    node_modules/@konveyor-ui/client
      workspace client from the root project

We want axios@1.6.8 but axios@0.21.4 is still pulled in. Which npm is dealing with this situation ok, eventually the differences could start to cause problems.

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