Similar to `git init -b`. Includes a change to `got import` behaviour such that "main" is no longer hardcoded by default; instead, we import to the branch resolved via the repository's HEAD reference unless `got import -b` is used, and only if HEAD cannot be resolved to a branch do we fallback to "main". includes fix plus ok from stsp@

ok jamsek

Prompted by a suggestion from stsp to make the help view distinct rather than follow the default behaviour of established views. Occupying the fullscreen seems to be a somewhat established convention for TUI apps. ok stsp@

Replace with got_object_commit_retain() to increment commit object reference counter. suggested by and ok stsp@

Reported by stsp: Embedded utf8 precludes developers running C locales from browsing the code. Fix was suggested by stsp with hints from the tmux(1) codebase. ok stsp@

Suggested by stsp. While here, add declarations for new help view routines. ok stsp@

Original idea inspired from discussion with tb, tobhe, and stsp at g2k22: display view-specific help, with option to toggle display of full key map reference when {H,F1} is pressed again inside the help view. Includes improvements suggested by stsp. ok stsp@

ok op@

Use the & key map to enter a pattern with which to limit the displayed commits to those matching the provided pattern; similar to less(1) and mutt's limit feature. Includes various tweaks from op. ok plus fixes from op@

and adjust the callers. discussed with and ok stsp@

In splitscreen mode, make the active view headline highlight extend the full width of view->ncols. While here, format the tree view header like the blame view by moving the index to the path line. suggested by and ok stsp@

ok stsp@