feat(completion): added avante-nvim plugin

lua/astrocommunity/completion/avante-nvim/README.md

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+Avante.nvim is a Neovim plugin that emulates the Cursor AI IDE's functionality. It provides AI-driven code suggestions and allows users to apply these recommendations directly to their source files with minimal effort.
+
+
+> [!IMPORTANT]
+>
+> `avante.nvim` is currently only compatible with Neovim 0.10.1 or later.
+
+For more information, please refer to:
+
+Repository: <https://github.com/yetone/avante.nvim>

lua/astrocommunity/completion/avante-nvim/init.lua

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+return {
+  "yetone/avante.nvim",
+  build = ":AvanteBuild",
+  cmd = {
+    "AvanteAsk",
+    "AvanteBuild",
+    "AvanteConflictChooseAllTheirs",
+    "AvanteConflictChooseBase",
+    "AvanteConflictChooseBoth",
+    "AvanteConflictChooseCursor",
+    "AvanteConflictChooseNone",
+    "AvanteConflictChooseOurs",
+    "AvanteConflictChooseTheirs",
+    "AvanteConflictListQf",
+    "AvanteConflictNextConflict",
+    "AvanteConflictPrevConflict",
+    "AvanteEdit",
+    "AvanteRefresh",
+    "AvanteSwitchProvider",
+  },
+  dependencies = {
+    "stevearc/dressing.nvim",
+    "nvim-lua/plenary.nvim",
+    "MunifTanjim/nui.nvim",
+    {
+      "AstroNvim/astrocore",
+      opts = function(_, opts)
+        local maps = assert(opts.mappings)
+        local prefix = "<Leader>a"
+
+        maps.n[prefix] = { desc = "Avante functionalities" }
+
+        maps.n[prefix .. "a"] = { function() require("avante.api").ask() end, desc = "Avante ask" }
+        maps.v[prefix .. "a"] = { function() require("avante.api").ask() end, desc = "Avante ask" }
+
+        maps.v[prefix .. "r"] = { function() require("avante.api").refresh() end, desc = "Avante refresh" }
+
+        maps.n[prefix .. "e"] = { function() require("avante.api").edit() end, desc = "Avante edit" }
+        maps.v[prefix .. "e"] = { function() require("avante.api").edit() end, desc = "Avante edit" }
+
+        -- the following key bindings do not have an official api implementation
+        maps.n.co = { ":AvanteConflictChooseOurs<CR>", desc = "Choose ours" }
+        maps.v.co = { ":AvanteConflictChooseOurs<CR>", desc = "Choose ours" }
+
+        maps.n.ct = { ":AvanteConflictChooseTheirs<CR>", desc = "Choose theirs" }
+        maps.v.ct = { ":AvanteConflictChooseTheirs<CR>", desc = "Choose theirs" }
+
+        maps.n.ca = { ":AvanteConflictChooseAllTheirs<CR>", desc = "Choose all theirs" }
+        maps.v.ca = { ":AvanteConflictChooseAllTheirs<CR>", desc = "Choose all theirs" }
+
+        maps.n.c0 = { ":AvanteConflictChooseNone<CR>", desc = "Choose none" }
+        maps.v.c0 = { ":AvanteConflictChooseNone<CR>", desc = "Choose none" }
+
+        maps.n.cb = { ":AvanteConflictChooseBoth<CR>", desc = "Choose both" }
+        maps.v.cb = { ":AvanteConflictChooseBoth<CR>", desc = "Choose both" }
+
+        maps.n.cc = { ":AvanteConflictChooseCursor<CR>", desc = "Choose cursor" }
+        maps.v.cc = { ":AvanteConflictChooseCursor<CR>", desc = "Choose cursor" }
+
+        maps.n["]x"] = { ":AvanteConflictPrevConflict<CR>", desc = "Move to previous conflict" }
+        maps.v["]x"] = { ":AvanteConflictPrevConflict<CR>", desc = "Move to previous conflict" }
+
+        maps.n["[x"] = { ":AvanteConflictNextConflict<CR>", desc = "Move to next conflict" }
+        maps.x["[x"] = { ":AvanteConflictNextConflict<CR>", desc = "Move to next conflict" }
+      end,
+    },
+  },
+  opts = {},
+  specs = { -- configure optional plugins
+    { -- if copilot.lua is available, default to copilot provider
+      "zbirenbaum/copilot.lua",
+      optional = true,
+      specs = {
+        {
+          "yetone/avante.nvim",
+          opts = {
+            provider = "copilot",
+          },
+        },
+      },
+    },
+    {
+      -- make sure `Avante` is added as a filetype
+      "MeanderingProgrammer/render-markdown.nvim",
+      optional = true,
+      opts = function(_, opts)
+        if not opts.file_types then opts.filetypes = { "markdown" } end
+        opts.file_types = require("astrocore").list_insert_unique(opts.file_types, { "Avante" })
+      end,
+    },
+    {
+      -- make sure `Avante` is added as a filetype
+      "OXY2DEV/markview.nvim",
+      optional = true,
+      opts = function(_, opts)
+        if not opts.filetypes then opts.filetypes = { "markdown", "quarto", "rmd" } end
+        opts.filetypes = require("astrocore").list_insert_unique(opts.filetypes, { "Avante" })
+      end,
+    },
+  },
+}