swh-web: Fix typos detected with CodeSpell

swh/web/admin/origin_save.py

swh/web/api/apidoc.py

swh/web/api/apiresponse.py

swh/web/api/views/origin_save.py

swh/web/assets/src/bundles/browse/origin-save.js

swh/web/assets/src/bundles/browse/origin-search.js

swh/web/assets/src/bundles/origin/visits-histogram.js

swh/web/assets/src/bundles/revision/diff-utils.js

swh/web/assets/src/bundles/vault/vault-ui.js

swh/web/assets/src/bundles/vendors/index.js

swh/web/assets/src/bundles/webapp/index.js

swh/web/assets/src/bundles/webapp/pdf-rendering.js

swh/web/assets/src/bundles/webapp/webapp-utils.js

swh/web/browse/utils.py

swh/web/common/highlightjs.py

swh/web/common/service.py

swh/web/common/utils.py

swh/web/templates/browse/vault-ui.html