fix: symlinked files cannot be highlighted when hovered

I experienced this issue when hovering over my yazi.nvim lazy.nvim spec.
It's symlinked to the actual file in the lazy.nvim repository.

These are the same file:

```sh
/Users/mikavilpas/dotfiles/.config/nvim/lua/plugins/my-file-manager.lua
/Users/mikavilpas/.config/nvim/lua/plugins/my-file-manager.lua
```

This commit fixes the issue by resolving the real path of the file
before
comparing it to the path of the buffer.

Closes #195

lua/yazi/renameable_buffer.lua

@@ -35,8 +35,10 @@ end
 ---@param path string can be a parent directory or an exact file path
 ---@return boolean
 function RenameableBuffer:matches_exactly(path)
-  path = remove_trailing_slash(path)
-  return self.path.filename == path
+  local path_a = vim.uv.fs_realpath(path) or path
+  local path_b = vim.uv.fs_realpath(self.path.filename) or self.path.filename
+
+  return path_a == path_b
 end
 
 ---@param path string

spec/yazi/renameable_buffer_spec.lua

@@ -30,6 +30,36 @@ describe('the RenameableBuffer class', function()
     assert.is_false(rename:matches_exactly('/my-tmp/file2'))
   end)
 
+  ---@param suffix string
+  local function create_temp_file(suffix)
+    local file_path = vim.fn.tempname() .. suffix
+    local file, err = io.open(file_path, 'w')
+    assert(file ~= nil, 'Failed to create a temporary file ' .. file_path)
+    assert(
+      err == nil,
+      'Failed to create a temporary file ' .. file_path .. ': ' .. (err or '')
+    )
+    local _, write_err = file:write('hello')
+    assert(
+      write_err == nil,
+      'Failed to write to a temporary file ' .. file_path
+    )
+    file:close()
+
+    return file_path
+  end
+
+  it('#focus matches when the file is a symlink', function()
+    local file1_path = create_temp_file('_file1')
+    local file2_path = vim.fn.tempname() .. '_file2'
+
+    local success, a, b = vim.uv.fs_symlink(file1_path, file2_path)
+    assert(success, vim.inspect({ 'Failed to create a symlink', a, b }))
+
+    local rename = RenameableBuffer.new(1, file1_path)
+    assert.is_true(rename:matches_exactly(file2_path))
+  end)
+
   it('renames a file', function()
     local rename = RenameableBuffer.new(1, '/my-tmp/file1')
     rename:rename('/my-tmp/file2')