PLF-5257: Fix Spanish locales-config translations into PLF 4.0.2
PLF-5251, PLF-5254: Disable Arabic and Spanish in PLF 4.0.2
PLF-5257: Inject Swedish translations into PLF 4.0.2 W29
PLF-5256: Inject Vietnamese translations into PLF 4.0.2 W29
PLF-5252 Inject Japanese translations into PLF 4.0.2
PLF-5235 Cleanup English resource bundles

Fix description:
* Remove the useless configuration concerning Delete action
* Remove obsolete keys in English resource bundles
PLF-5122: [Branding] i18n of Upload button and Preview title

Fix description:
* Add resource bundle for Upload button
* Replace the hard-coded labels by the corresponding resource bundle keys
PLF-5122: [Branding] i18n of Style options

Fix description:
	* Add resource bundle for Style options
	* Replace the hard-coded values by the corresponding resource bundle keys
Merge branch 'fix/4.0.x/PLF-5122' into stable/4.0.x
PLF-5134: i18n of Trial banner

Fix description:
* Define new resource bundle keys for these texts
* Use them inside Trial banner
PLF-5159 - Add Unified search and File Explorer pages into acme website
Revert "PLF-5251, PLF-5254: Disable Arabic and Spanish in PLF 4.0.2"

This reverts commit d7ffb28e74dab62893168cd3a1a12f220a6d1591 to make automatic merges to feature/4.0.x-translation successful.
Merge commit '62e6dd164ff3f5b11524e1bbc8ffe749ac0d2b57' into HEAD