feat: add new project and single page layouts

- Created a new layout for projects with sections for hero, projects, roadmap, selection criteria, and a call to action.
- Added a single page layout for individual project details, including a hero section and content area.
- Introduced a brand highlight partial to emphasize "TheAfriForge" in text.
- Implemented an icon partial for reusable SVG icons across the site.
- Developed a site header and footer with navigation and legal links, adapting for language variations.
- Enhanced the index layout with sections for hero, stats, pillars, projects, and members.
- Added a development script to load environment variables and run Hugo with optional arguments.

i18n/en.toml

@@ -0,0 +1,37 @@
+[siteDescription]
+other = "African foundation for open-source software and digital sovereignty."
+
+[gitforgeCta]
+other = "Access GitForge"
+
+[headerCtaMembers]
+other = "Become a Member"
+
+[themeModeLight]
+other = "Day"
+
+[themeModeDark]
+other = "Night"
+
+[themeToggleAria]
+other = "Toggle theme"
+
+[themeSetLightAria]
+other = "Enable day mode"
+
+[themeSetDarkAria]
+other = "Enable night mode"
+
+
+
+[footerTagline]
+other = "Foundation for open-source software and digital sovereignty in Africa."
+
+[footerLegal]
+other = "Legal Notice"
+
+[footerPrivacy]
+other = "Privacy Policy"
+
+[footerGovernance]
+other = "Governance Charter"