[search] redo the whole thing based on telescope

[aliou]

Normal mode:

1. run mapping <leader>s
2. Displays a floating window in the middle of the window to type the search term (in the future, completion?)
3. searches async? and displays results in telescope

Visual mode:

1. run mapping <leader>s
2. Searches async? and display results in telescope

For both searches, store the previous searches and allow circle through them

[aliou]

Find a way to allow filtering on directories?