fix: replace obsolete icons (#4111)

* fix(icons): replace obsolete icons

* remove the trailing space of Triangle

lua/lvim/icons.lua

@@ -11,7 +11,7 @@ return {
     Event = "",
     Field = "",
     File = "",
-    Folder = "",
+    Folder = "󰉋",
     Function = "",
     Interface = "",
     Key = "",
@@ -19,7 +19,7 @@ return {
     Method = "",
     Module = "",
     Namespace = "",
-    Null = "ﳠ",
+    Null = "󰟢",
     Number = "",
     Object = "",
     Operator = "",
@@ -69,7 +69,7 @@ return {
     Bug = "",
     Stacks = "",
     Scopes = "",
-    Watches = "",
+    Watches = "󰂥",
     DebugConsole = "",
     Calendar = "",
     Check = "",
@@ -79,7 +79,7 @@ return {
     ChevronShortRight = "",
     ChevronShortUp = "",
     Circle = "",
-    Close = "",
+    Close = "󰅖",
     CloudDownload = "",
     Code = "",
     Comment = "",
@@ -93,10 +93,10 @@ return {
     File = "",
     FileSymlink = "",
     Files = "",
-    FindFile = "",
-    FindText = "",
+    FindFile = "󰈞",
+    FindText = "󰊄",
     Fire = "",
-    Folder = "",
+    Folder = "󰉋",
     FolderOpen = "",
     FolderSymlink = "",
     Forward = "",
@@ -110,19 +110,19 @@ return {
     NewFile = "",
     Note = "",
     Package = "",
-    Pencil = "",
+    Pencil = "󰏫",
     Plus = "",
     Project = "",
     Search = "",
     SignIn = "",
     SignOut = "",
-    Tab = "",
+    Tab = "󰌒",
     Table = "",
     Target = "󰀘",
     Telescope = "",
     Text = "",
     Tree = "",
-    Triangle = "契",
+    Triangle = "󰐊",
     TriangleShortArrowDown = "",
     TriangleShortArrowLeft = "",
     TriangleShortArrowRight = "",
@@ -138,12 +138,12 @@ return {
     BoldQuestion = "",
     Question = "",
     BoldHint = "",
-    Hint = "",
+    Hint = "󰌶",
     Debug = "",
     Trace = "✎",
   },
   misc = {
-    Robot = "ﮧ",
+    Robot = "󰚩",
     Squirrel = "",
     Tag = "",
     Watch = "",