Clean up codebase and improve file loading

- Moved plugins to proper sub groups (autopairs, code_minimap, colorize, commentzar, info_bar, markdown_preview, prettify_json, search_replace, tabs_bar, telescope, toggle_source_view, lsp_client)
- Add filter_out_loaded_files to prevent opening already-loaded files
- Add INDEPENDENT source view state
- Fix cursor scroll position on buffer switch
- Fix signal blocking during file load
- Fix word boundary in completion provider
- Refactor code events into single events module

plugins/code/commands/commentzar/commenter.py

@@ -0,0 +1,66 @@
+# Python imports
+
+# Lib imports
+
+# Application imports
+from .mixins.code_comment_tags_mixin import CodeCommentTagsMixin
+
+
+
+class Commenter(CodeCommentTagsMixin):
+    def __init__(self):
+        ...
+
+
+    def keyboard_tggl_comment(self, buffer):
+        language   = buffer.get_language()
+        if language is None: return
+
+        start_tag, end_tag = self.get_comment_tags(language)
+        # Note: Only handling line comment tag- no block comment option
+        if not start_tag and not end_tag: return
+
+        bounds = buffer.get_selection_bounds()
+        if bounds:
+            self._bounds_comment(
+                start_tag, end_tag, bounds, buffer
+            )
+        else:
+            self._line_comment(start_tag, end_tag, buffer)
+
+
+    def _line_comment(self, start_tag, end_tag, buffer):
+        start_itr = buffer.get_iter_at_mark( buffer.get_insert() ).copy()
+        end_itr   = start_itr.copy()
+        if not start_itr.starts_line():
+            start_itr.set_line_offset(0)
+        if not end_itr.ends_line():
+            end_itr.forward_to_line_end()
+
+        text = buffer.get_text(start_itr, end_itr, True)
+        text = text.replace(start_tag, "") if text.startswith(start_tag) else start_tag + text
+
+        buffer.begin_user_action()
+        buffer.delete(start_itr, end_itr)
+        buffer.insert(start_itr, text)
+        buffer.end_user_action()
+
+
+    def _bounds_comment(self, start_tag, end_tag, bounds, buffer):
+        start_itr, end_itr = bounds
+        if not start_itr.starts_line():
+            start_itr.set_line_offset(0)
+        if not end_itr.ends_line():
+            end_itr.forward_to_line_end()
+
+        text = buffer.get_text(start_itr, end_itr, True)
+        text = "\n".join(
+            line.replace(start_tag, "") if line.startswith(start_tag) else start_tag + line
+            for line in text.splitlines()
+        )
+
+        buffer.begin_user_action()
+        buffer.delete(start_itr, end_itr)
+        buffer.insert(start_itr, text)
+        buffer.end_user_action()
+