refactor: rename package `diff` to `diffview`

Andrey Nering created

Change summary

internal/exp/diff/diff.go                                                                        | 1 
internal/exp/diffview/diffview.go                                                                | 1 
internal/exp/diffview/testdata/TestUdiff/ToUnifiedDiff/DefaultContextLines/Content.golden        | 0 
internal/exp/diffview/testdata/TestUdiff/ToUnifiedDiff/DefaultContextLines/JSON.golden           | 0 
internal/exp/diffview/testdata/TestUdiff/ToUnifiedDiff/DefaultContextLinesPlusOne/Content.golden | 0 
internal/exp/diffview/testdata/TestUdiff/ToUnifiedDiff/DefaultContextLinesPlusOne/JSON.golden    | 0 
internal/exp/diffview/testdata/TestUdiff/ToUnifiedDiff/DefaultContextLinesPlusTwo/Content.golden | 0 
internal/exp/diffview/testdata/TestUdiff/ToUnifiedDiff/DefaultContextLinesPlusTwo/JSON.golden    | 0 
internal/exp/diffview/testdata/TestUdiff/Unified.golden                                          | 0 
internal/exp/diffview/udiff_test.go                                                              | 2 
10 files changed, 2 insertions(+), 2 deletions(-)

Detailed changes