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
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
PLF-5235: Remove redundant resource bundle files of other languages
PLF-5303: Inject english and french translation from Crowdin W30
PLF-5297: Inject Japanese (ja) translation from Crowdin W30
PLF-5296: Inject Vietnamese (vi) translation from Crowdin W30
PLF-5295: Inject German (de) translation from Crowdin W30
PLF-5294: Inject Swedish (sv-SE) translation from Crowdin W30
PLF-5293: Inject Arabic (ar) translation from Crowdin W30
PLF-5298: Inject Spanish (es-ES) translation from Crowdin W30
PLF-5299: Inject Brazilian (pt-BR) locales-config translation from Crowdin W30
PLF-5299: Inject Brazilian (pt-BR) translation from Crowdin W30
PLF-5300: Inject Italian (it) translation from Crowdin W30
PLF-5299: Update the language codes of Spanish, Swedish, Portuguese-Brazilian in gadgets
PLF-5299: Update locales-config.xml