Reorganise folders / files in f/mserving-metrics feature areas

[alexcreasy]

Description

The folders associated with the model serving metrics features had become very untidy and bloated. This PR moves and renames files / folders to improve naming consistency and logical groupings. There are no logic or visual changes here.

How Has This Been Tested?

• Test suite run
• Deploy image and poke things to make sure nothing is broken

Test Impact

N/A no logic is changed, only the organisation, TypeScript / WebStorm did all the heavy lifting here.

Request review criteria:

Self checklist (all need to be checked):

• The developer has manually tested the changes and verified that the changes work
• Commits have been squashed into descriptive, self-contained units of work (e.g. 'WIP' and 'Implements feedback' style messages have been removed)
• Testing instructions have been added in the PR body (for PRs involving changes that are not immediately obvious).
• The developer has added tests or explained why testing cannot be added (unit tests & storybook for related changes)

If you have UI changes:

• Included any necessary screenshots or gifs if it was a UI change.
• Included tags to the UX team if it was a UI/UX change (find relevant UX in the SMEs section).

After the PR is posted & before it merges:

• The developer has tested their solution on a cluster by using the image produced by the PR to main

[openshift-ci]

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