#79 webcli: mosaic sort should sort whole context

[S Luz]

When word is selected on mosaic, the lines should be sorted based on the entire string to the left or right of selected word. Ate the moment it only sorts by the selected word's position. This is not optimal from the point of view of spotting patterns.

E.g.: search for democracy, then select must as kw+1 collocated; you get the following right context in the current version:

Democracy must exist beyond the political system—in the economic system
democracy must be scrapped, framed, ultimately challenged.
Democracy must begin at home, and its home is the neighborly
democracy must distinguish with care what is Puritan in origin and

when a sorted version would show:

democracy must be scrapped, framed, ultimately challenged.
democracy must be the most moderate. An account of their
democracy must be counted as destructive of tyranny as well, since extreme oligarchy and democracy democracy must be a struggle for demo-diversity

allowing the user to spot the would+be pattern, and the things democracy would be (i.e. text beyond kw+2)

It is possible to sort by position, but doing this every time is cumbersome if you do many searches, so the default should be to sort the whole context.