improve: support to customize the spinners (#2397)

lua/avante/config.lua

@@ -558,6 +558,48 @@ M._defaults = {
       align = "center", -- left, center, right for title
       rounded = true,
     },
+    spinner = {
+      editing = {
+        "⡀",
+        "⠄",
+        "⠂",
+        "⠁",
+        "⠈",
+        "⠐",
+        "⠠",
+        "⢀",
+        "⣀",
+        "⢄",
+        "⢂",
+        "⢁",
+        "⢈",
+        "⢐",
+        "⢠",
+        "⣠",
+        "⢤",
+        "⢢",
+        "⢡",
+        "⢨",
+        "⢰",
+        "⣰",
+        "⢴",
+        "⢲",
+        "⢱",
+        "⢸",
+        "⣸",
+        "⢼",
+        "⢺",
+        "⢹",
+        "⣹",
+        "⢽",
+        "⢻",
+        "⣻",
+        "⢿",
+        "⣿",
+      },
+      generating = { "·", "✢", "✳", "∗", "✻", "✽" },
+      thinking = { "🤯", "🙄" },
+    },
     input = {
       prefix = "> ",
       height = 6, -- Height of the input window in vertical layout

lua/avante/sidebar.lua

@@ -89,8 +89,8 @@ function Sidebar:new(id)
     chat_history = nil,
     current_state = nil,
     state_timer = nil,
-    state_spinner_chars = { "·", "✢", "✳", "∗", "✻", "✽" },
-    thinking_spinner_chars = { "🤯", "🙄" },
+    state_spinner_chars = Config.windows.spinner.generating,
+    thinking_spinner_chars = Config.windows.spinner.thinking,
     state_spinner_idx = 1,
     state_extmark_id = nil,
     scroll = true,

lua/avante/ui/prompt_input.lua

@@ -44,47 +44,7 @@ function PromptInput:new(opts)
   obj.close_on_submit = opts.close_on_submit or false
   obj.win_opts = opts.win_opts
   obj.default_value = opts.default_value
-  obj.spinner_chars = {
-    "⡀",
-    "⠄",
-    "⠂",
-    "⠁",
-    "⠈",
-    "⠐",
-    "⠠",
-    "⢀",
-    "⣀",
-    "⢄",
-    "⢂",
-    "⢁",
-    "⢈",
-    "⢐",
-    "⢠",
-    "⣠",
-    "⢤",
-    "⢢",
-    "⢡",
-    "⢨",
-    "⢰",
-    "⣰",
-    "⢴",
-    "⢲",
-    "⢱",
-    "⢸",
-    "⣸",
-    "⢼",
-    "⢺",
-    "⢹",
-    "⣹",
-    "⢽",
-    "⢻",
-    "⣻",
-    "⢿",
-    "⣿",
-    "⣶",
-    "⣤",
-    "⣀",
-  }
+  obj.spinner_chars = Config.windows.spinner.editing
   obj.spinner_index = 1
   obj.spinner_timer = nil
   obj.spinner_active = false