feat(ui): improve UI on smaller screens

- responsive changes were causing a lot of weird layout issues, had to remove the rest of them
- canvas (non-beta) toolbar now wraps
- reduces minH for prompt boxes a bit

invokeai/frontend/web/src/features/parameters/components/Parameters/Core/ParamNegativeConditioning.tsx

@@ -25,6 +25,7 @@ const ParamNegativeConditioning = () => {
           borderColor: 'error.600',
         }}
         fontSize="sm"
+        minH={16}
       />
     </FormControl>
   );

invokeai/frontend/web/src/features/parameters/components/Parameters/Core/ParamPositiveConditioning.tsx

@@ -82,7 +82,7 @@ const ParamPositiveConditioning = () => {
           onKeyDown={handleKeyDown}
           resize="vertical"
           ref={promptRef}
-          minH={{ base: 20, lg: 40 }}
+          minH={32}
         />
       </FormControl>
     </Box>