AdminLTE (edit)

https://www.backblaze.com/blog/how-to-get-your-first-1000-customers/

CoreUI Pro Bootstrap Admin Template

https://coreui.io/

AdminLTE 3

https://adminlte.io/

AdminLTE 2

https://adminlte.io/themes/AdminLTE/index2.html

AdminLTE 2.4

https://adminlte.io/docs/2.4/installation

AdminLTE 2.3

https://adminlte.io/themes/AdminLTE/documentation/index.html

Free Online HTML Editor

https://froala.com/online-html-editor/

Multi languages website

https://octobercms.com/blog/post/building-responsive-multi-language-website-blog-and-static-pages

https://blog.weglot.com/9-tips-for-designing-a-multi-language-website/

Bootstrap Toggle - Toggle Switch - Bootstrap Button Toggle (On/Off Switch)

https://bootsnipp.com/snippets/Q0d6E (Bootstrap 4) (HAY HAY HAY)

https://bootsnipp.com/snippets/v7x77 (Bootstrap 3) (HAY HAY HAY)

https://www.geeksforgeeks.org/how-to-create-toggle-switch-by-using-html-and-css/ (HAY HAY HAY)

https://www.w3schools.com/howto/howto_css_switch.asp 

https://www.bootstraptoggle.com/ (HAY HAY HAY)

Switch Languages in Menu Items

https://jsfiddle.net/mttkchfc/4/ (HAY HAY HAY)

https://www.cssscript.com/demo/switch-languages-ease-languageselector/

https://github.com/ColorlibHQ/AdminLTE/blob/master/pages/examples/language-menu.html

https://forum.pinegrow.com/t/bootstrap-4-multilingual-site-menu/1720

https://bootsnipp.com/snippets/mprMM

https://stackoverflow.com/questions/53021813/html-two-language-option-with-button-without-having-to-redirect-to-different-pa

Switch Language in DataTables

https://datatables.net/examples/basic_init/language

https://stackoverflow.com/questions/26487765/bootstrap-datepicker-set-language-globally

https://stackoverflow.com/questions/13342494/how-to-change-language-for-datatable

DataTables

https://quickadminpanel.com/blog/how-to-customize-datatables-6-most-requested-tips/