feat(#2415): colour and highlight overhaul, see :help nvim-tree-highlight-overhaul (#2455)
* feat(#2415): granular highlight_diagnostics, normalise groups (#2454)
* chore: normalise colours and enable cterm (#2471)
* feat(#2415): granular highlight_git, normalise git groups (#2487)
* docs: update CONTRIBUTING.md (#2485)
* feat(#2415): granular highlight_git, normalise git groups
* feat(#2415): normalise and add modified groups
* feat(#2415): create Decorator class for modified and bookmarks
* feat(#2415): create DecoratorDiagnostics
* feat(#2415): create DecoratorGit
* feat(#2415): create DecoratorGit
* add DecoratorCopied DecoratorCut
* add DecoratorOpened
* remove unloaded_bufnr checks as the view debouncer takes care of it
* Add `renderer.highlight_git` to accepted strings
* fix(#2415): builder refactor (#2538)
* simplify builder signs
* decorators take care of themselves and are priority ordered
* simplify builder hl groups
* refactor builder for icon arrays
* builder use decorators generically
* fix(#2415): harden sign creation (#2539)
* fix(#2415): harden unicode signs
* Decorator tidy
* normalise git sign creation and tidy
* tidy builder
* NvimTreeBookmarkIcon
* tidy HL doc
* tidy HL doc
* tidy HL doc
* tidy builder doc
* standardise on '---@param'
* DiagnosticWarning -> DiagnosticWarn
* annotate decorators
* limit to two highlight groups for line rendering
* style
* apply #2519
* feat(#2415): combined hl groups (#2601)
* feat(#2415): create combined highlight groups
* feat(#2415): create combined highlight groups
* feat(#2415): create combined highlight groups
* ci: allow workflow_dispatch (#2620)
* one and only one hl namespace, required winhl removal
* small tidies
* colors.lua -> appearance.lua
* full-name uses one and only namespace
* don't highlight fast, just apply to namespace, safer win_set_hl
* gut builder (#2622)
collapse Builder
* fix group_empty function check
* feat(#2415): highlight-overhaul release date
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Co-authored-by: Akmadan23 <azadahmadi@mailo.com>
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