Use filters with Plaintext/HTTP

[jgupta]

I think we can use filters with Plaintext/HTTP by first switching to Playwright to select filter and then move back to Plaintext/HTTP.

Problem with this approach is to test if website works with Plaintext/HTTP and that filter is working correctly. It takes a lot of time. We should explore making this easier.

1. Even if URL is set to Plaintext/HTTP mode, we can have a button on Visual Filter Selector page that will use Playwright to show page.
2. Similar to Proxy Check/Scan all button, we can have a test button to fetch text using both methods and show side by side highlighting difference so that one can choose right fetch method.
3. There can be fallback to Playwright method all text or some defined text is missing from page.

[dgtlmoon]

Sure why not