feat: Enhance campaign terms management with keyword addition and match type change functionality

- Added a toolbar for adding keywords in the campaign terms view.
- Implemented match type change functionality with a confirmation dialog.
- Added delete functionality for keywords with confirmation.
- Updated styles for new buttons and icons in the campaign terms view.
- Enhanced product view with warning icons for product alerts and corresponding modal display.
- Updated product table to include a new column for warnings and adjusted column visibility settings.
- Documented project overview, code style conventions, suggested commands, and task completion checklist.

.serena/project.yml

@@ -27,6 +27,7 @@ project_name: "adsPRO"
 # Note that when using the JetBrains backend, language servers are not used and this list is correspondingly ignored.
 languages:
 - typescript
+- php
 
 # the encoding used by text files in the project
 # For a list of possible encodings, see https://docs.python.org/3.11/library/codecs.html#standard-encodings