Added fix for c1 promobar not loading properly

[SwarnimNegi]

• Resolves c1 aside promo bar not getting loaded properly
• Promo bar is visible only when both the script and stylesheet has loaded for it.

Resolves: MWPW-203975

Test: https://adobecom.github.io/nav-consumer/navigation.html?env=stage&authoringPath=/federal/helpx/gnav&navbranch=mwpw-203975-promobar

Content override the html on the page to add the following meta tag to activate the promo:

<meta name="gnav-promo-source" content="/federal/helpx/fragments/max-2026-promobar">

GNav Test URLs

Gnav + Footer + Region Picker modal:

• Acrobat: https://main--dc--adobecom.aem.live/acrobat?martech=off&milolibs=mwpw-203975-promobar--milo--adobecom
• BACOM: https://main--da-bacom--adobecom.aem.live/?martech=off&milolibs=mwpw-203975-promobar--milo--adobecom
• CC: https://main--cc--adobecom.aem.live/creativecloud?martech=off&milolibs=mwpw-203975-promobar--milo--adobecom
• Milo: https://mwpw-203975-promobar--milo--adobecom.aem.page/drafts/blaishram/test-urls/page?martech=off
• Express: https://main--express-milo--adobecom.aem.live/express/?martech=off&milolibs=mwpw-203975-promobar--milo--adobecom
• News: https://main--news--adobecom.aem.live/?martech=off&milolibs=mwpw-203975-promobar--milo--adobecom
• Homepage: https://main--homepage--adobecom.aem.live/homepage/index-loggedout?martech=off&milolibs=mwpw-203975-promobar--milo--adobecom

Thin Gnav + ThinFooter + Region Picker dropup:

• Acrobat: https://main--dc--adobecom.aem.page/drafts/blaishram/test-urls/page-gnav-footer-thin?martech=off&milolibs=mwpw-203975-promobar--milo--adobecom
• BACOM: https://main--da-bacom--adobecom.aem.page/drafts/blaishram/test-urls/page-gnav-footer-thin?martech=off&milolibs=mwpw-203975-promobar--milo--adobecom
• CC: https://main--cc--adobecom.aem.page/drafts/blaishram/test-urls/page-gnav-footer-thin?martech=off&milolibs=mwpw-203975-promobar--milo--adobecom
• Milo: https://mwpw-203975-promobar--milo--adobecom.aem.page/drafts/blaishram/test-urls/page-gnav-footer-thin?martech=off
• Express: https://main--express-milo--adobecom.aem.page/drafts/blaishram/test-urls/page-gnav-footer-thin?martech=off&milolibs=mwpw-203975-promobar--milo--adobecom
• News: https://main--news--adobecom.aem.page/drafts/blaishram/test-urls/page-gnav-footer-thin?martech=off&milolibs=mwpw-203975-promobar--milo--adobecom
• Homepage: https://main--homepage--adobecom.aem.page/drafts/blaishram/test-urls/page-gnav-footer-thin?martech=off&milolibs=mwpw-203975-promobar--milo--adobecom

Localnav + Promo:

• Acrobat: https://main--dc--adobecom.aem.page/drafts/blaishram/test-urls/page-with-promo?martech=off&milolibs=mwpw-203975-promobar--milo--adobecom
• BACOM: https://main--da-bacom--adobecom.aem.page/drafts/blaishram/test-urls/page-with-promo?martech=off&milolibs=mwpw-203975-promobar--milo--adobecom
• CC: https://main--cc--adobecom.aem.page/drafts/blaishram/test-urls/page-with-promo?martech=off&milolibs=mwpw-203975-promobar--milo--adobecom
• Milo: https://mwpw-203975-promobar--milo--adobecom.aem.page/drafts/blaishram/test-urls/page-with-promo?martech=off
• Express: https://main--express-milo--adobecom.aem.page/drafts/blaishram/test-urls/page-with-promo?martech=off&milolibs=mwpw-203975-promobar--milo--adobecom
• News: https://main--news--adobecom.aem.page/drafts/blaishram/test-urls/page-with-promo?martech=off&milolibs=mwpw-203975-promobar--milo--adobecom
• Homepage: https://main--homepage--adobecom.aem.page/drafts/blaishram/test-urls/page-with-promo?martech=off&milolibs=mwpw-203975-promobar--milo--adobecom

Sticky Branch Banner:

• URL: https://main--federal--adobecom.aem.page/drafts/blaishram/banner/branch-banner-sticky?martech=off&milolibs=mwpw-203975-promobar--milo--adobecom

Inline Branch Banner:

• URL: https://main--federal--adobecom.aem.page/drafts/blaishram/banner/branch-banner-inline?martech=off&milolibs=mwpw-203975-promobar--milo--adobecom

Blog

• URL: https://main--blog--adobecom.aem.page/?martech=off&milolibs=mwpw-203975-promobar--milo--adobecom

RTL Locale

• URL: https://main--homepage--adobecom.aem.live/mena_ar/homepage/index-loggedout?martech=off&milolibs=mwpw-203975-promobar--milo--adobecom

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