- Add bulk flexing options

- Added ability to flex into full sessions

• instant session requests
(see session requests instantly without waiting for the cache to update)
• actually update version numbers
• fix occasional loading bug
• improve logging
• add toasts to options page

- disabled "force search" option - this was basically making it impossible to flex anywhere

- performance improvements (should fix a bug on Firefox)

- performance improvements and caching for flex sessions
- improve options UI

- minor bug fixes