(refactor) Reorganise styles

[denniskigen]

Requirements

• This PR has a title that briefly describes the work done including the ticket number. If there is a ticket, make sure your PR title includes a conventional commit label. See existing PR titles for inspiration.
• My work conforms to the OpenMRS 3.0 Styleguide and design documentation.
• My work includes tests or is validated by existing tests.

Summary

This PR breaks down the _inputs.scss stylesheet, factoring out the styles into their own stylesheets colocated with their related components and getting rid of some cruft. This should make it easier to refactor styling moving forward, as one would only have to modify the colocated stylesheet file each time they modify a component.

[github-actions]

Size Change: -30.8 kB (-5%) ✅

Total Size: 546 kB

Filename	Size	Change
dist/554.js	0 B	-32.3 kB (removed)	🏆

ℹ️ View Unchanged

Filename	Size	Change
dist/225.js	9.82 kB	0 B
dist/272.js	6.59 kB	0 B
dist/290.js	81.1 kB	0 B
dist/294.js	2.63 kB	0 B
dist/366.js	6.94 kB	0 B
dist/591.js	2.96 kB	0 B
dist/595.js	106 kB	0 B
dist/634.js	777 B	0 B
dist/709.js	2.42 kB	0 B
dist/739.js	33.8 kB	0 B
dist/986.js	193 kB	0 B
dist/main.js	97.6 kB	+1.57 kB (+2%)
dist/openmrs-form-engine-lib.js	3.24 kB	-2 B (0%)

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[samuelmale]

This is an amazing effort @denniskigen 🙌 👏