feat: users can search in threads using keyword/combination/regex

[nikiluk]

Problem It's not possible to search for a specific keyword in the Threads. I have to call developer tools and search via dev tools and this is not very user-friendly.

Success Criteria

• A search bar that is easily accessible and visible
• A [CTRL+F]/[CMD+F] combination calling a search bar and focusing the cursor in the input field - when the app is open and active
• A Search view that displays threads that contain a search keyword/combination
• Highlighted search keyword/combination
• Jump-scroll to a particular search finding if there are multiple on the same screen + counter.

Example from VS Code:

Additional context It would be great to implement a RegEx search too as an additional option.

[0xSage]

We need to think through if this is just a thread level search or a global search (e.g. cmd+k)