[OUDS] Change boosted package to ouds-web

[julien-deramond]

Description

The idea of this PR is to move forward with the packaging of OUDS Web, so basically change "boosted" to "ouds-web", and so, all of JS, CSS, and Sass files too.

This is the minimal modifications I can do at first. Not everything is modified correctly, and will be done in separate PRs:

• For now, voluntarily, on the JS side, not everything is modified in the documentation, especially the parts where we have import * as boosted from 'boosted'
• Some files are not imported correctly, or "Boosted" is still mentioned somewhere
• Some files are still named "boosted*"

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[louismaximepiton]

We're missing some import "boosted/... in some .md files such as color-palette.md, optimize.md, sass.md, api.md, or do we keep them for later?
A /boosted is still there in contribute.md, download.md (8occurrences), javascript.md (3), parcel.md(6)

[louismaximepiton]

GJ 👌