Add search UI feedback and hide button to search/replace plugin

- Add visual feedback styling for search states (searching, success, fail)
- Show match count in status label when searching
- Add hide (X) button to hide search panel
- Fix typo: stateus_lbl → status_lbl
- Add _set_find_options_lbl to display active search options

plugins/code/search_replace/mixins/search_mixin.py

@@ -32,6 +32,8 @@ class SearchMixin:
 
 
     def _find_all_matches(self, search_text, buffer):
+        self.update_style(0)
+
         self.matches.clear()
         self.current_index = -1
 

plugins/code/search_replace/mixins/search_replace_mixin.py

@@ -37,11 +37,14 @@ class SearchReplaceMixin(SearchMixin, ReplaceMixin):
         self.highlight_tag = buffer.get_tag_table().lookup("search-highlight")
 
         if not search_text:
+            self.update_style(-1)
             self.clear_highlight(buffer)
+            self.status_lbl.set_label("Find in current buffer...")
             return
 
         self._find_all_matches(search_text, buffer)
         self._highlight_all_matches(buffer)
+        self._update_status_lbl(len(self.matches), search_text)
 
     def _find_entry_activate(self, entry):
         self._find_entry_next_match(entry)