v1.0

Many great changes, from plugins to simple tweaks:

• Most tabstops are 2 spaces wide (WIP: Unstable)
• <Leader>rw removes all trailing spaces
• Added Copilot plugin with <Leader>=[...] key bindings
• Added Codeium plugin too, as an alternative to Copilot
• Ctrl+E applies autocompletion, from nvim-cmp and copilot
• Intelephense works with php
• Added sort.nvim plugin
• Added todo-comments plugin
• Added vim-matchup plugin for easy navigation between tags with %
• Added vim-pug for compatibility with Pug files
• Added whitespace.nvim to visibly highlight trailing spaces