fix(icons): replace obsolete Nerd icons (#331)

lua/lazyvim/plugins/editor.lua

@@ -243,8 +243,8 @@ return {
       signs = {
         add = { text = "▎" },
         change = { text = "▎" },
-        delete = { text = "契" },
-        topdelete = { text = "契" },
+        delete = { text = "󰐊" },
+        topdelete = { text = "󰐊" },
         changedelete = { text = "▎" },
         untracked = { text = "▎" },
       },

lua/lazyvim/plugins/ui.lua

@@ -245,8 +245,8 @@ return {
         dashboard.button("r", " " .. " Recent files", ":Telescope oldfiles <CR>"),
         dashboard.button("g", " " .. " Find text", ":Telescope live_grep <CR>"),
         dashboard.button("c", " " .. " Config", ":e $MYVIMRC <CR>"),
-        dashboard.button("s", "勒" .. " Restore Session", [[:lua require("persistence").load() <cr>]]),
-        dashboard.button("l", "鈴" .. " Lazy", ":Lazy<CR>"),
+        dashboard.button("s", "󰑓 " .. " Restore Session", [[:lua require("persistence").load() <cr>]]),
+        dashboard.button("l", "󰒲 " .. " Lazy", ":Lazy<CR>"),
         dashboard.button("q", " " .. " Quit", ":qa<CR>"),
       }
       for _, button in ipairs(dashboard.section.buttons.val) do