Update issue templates

.github/ISSUE_TEMPLATE/request-to-add-icons.md

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+---
+name: Request to add icons
+about: Request to add operating system icons
+title: Request to add icons for
+labels: add OS incon
+assignees: LightAir
+
+---
+
+Please add icons for operating systems: (Operating systems separated by commas)
+
+Directory names where the efi files of the required operating systems are installed: (For example: //boot/efi/EFI/ubuntu)
+
+Links to websites: (etc. https://ubuntu.com/)