CotEditor 4.5.0

What's new in this version:

New Features:
- Renew the snippets feature to enable naming it, changing the order, and performing from the menu
- Add the Insert Snippet submenu to the Text menu
- Add a new scope “syntax style” to the snippet feature to perform snippets only in a specific syntax style
- Add a new variable “selection” to the snippet feature to place the currently selected text to the inserted text
- Enable the character inspector to inspect more information about each Unicode scalar that makes up a character

Improved:
- Reconstruct the Snippets (ex. File Drop) and Key Bindings panes in the Settings window
- Allow single function key stroke for a keyboard shortcut
- Update item order of the Edit menu
- Change counting characters/lines/words to count all elements in multiple selections
- Change the threshold to trigger the automatic completion to 3 letters to optimize calculation time by large documents
- Allow _ as a character for completion candidates
- Synchronize the visibility of all navigation/status bars in the application
- Optimize the performance of text editing while URL linking is enabled
- Make filter highlights of the outline list more legible in the Dark Mode
- Update Swift syntax style to add keywords for Swift 5.8
- Deprecate the Insert Encoding Name command (use AppleScript instead)
- Update the help contents
- [non-AppStore ver.] Update Sparkle from 2.3.1 to 2.3.2
- [dev] Update Yams from 5.0.4 to 5.0.5

Fixed:
- Fix an issue in the search window that an error dialog for invalid regular expression appeared even on incremental search
- Fix an issue that the application did not terminate when no documents exist and the application goes background
- Fix an issue that the Replace button in the Find window did not select the next match
- Fix an issue on macOS 12 that the buttons at the bottom were not aligned
- Fix an issue that all URL links were removed when an external process updated the document
- Fix the redo action label for the line endings conversion and file encoding change