Add "send to" buttons for instruction templates

- Remove instruction templates from prompt dropdowns (default/notebook)
- Add 3 buttons to Parameters > Instruction template as a replacement
- Increase the number of lines of 'negative prompt' field to 3, and add a scrollbar
- When uploading a character, switch to the Character tab
- When uploading chat history, switch to the Chat tab

modules/ui.py

@@ -12,6 +12,8 @@ with open(Path(__file__).resolve().parent / '../js/main.js', 'r') as f:
     js = f.read()
 with open(Path(__file__).resolve().parent / '../js/save_files.js', 'r') as f:
     save_files_js = f.read()
+with open(Path(__file__).resolve().parent / '../js/switch_tabs.js', 'r') as f:
+    switch_tabs_js = f.read()
 
 refresh_symbol = '🔄'
 delete_symbol = '🗑️'