**
** Keyboard navigation shortcuts:
**
**    N     Focus first (newest) entry.
**    n     Focus next (newer) entry, or open next page.
**    m     Focus previous (older) entry, or open previous page.
**    M     Focus last (oldest) entry.
**    h     Move focus between selected, current (check-out) and ticked entries.
**    .     Focus entry closest to center of viewport.
**    H     Scroll to focused entry.
**    ,     Tick/untick node of focused entry, or open diff if two nodes ticked.
**    ;     Untick nodes of all entries.
**    j     Move focus between selected, current (check-out) and ticked entries.
**    ,     Focus entry closest to center of viewport.
**    J     Scroll to focused entry.
**    h     Tick/untick node of focused entry, or open diff if two nodes ticked.
**    H     Untick nodes of all entries.
**    b     Copy the commit hash of the focused entry to clipboard.
**    B     Copy the branch name of the focused entry to clipboard.
**    j     View timeline of focused entry.
**    J     View timeline of focused entry filtered by branch.
**    l     View timeline of focused entry.
**    L     View timeline of focused entry filtered by branch.
**    k     View details of focused entry.
**    ESC   Disable keyboard navigation mode.
*/
void page_timeline(void){
  Stmt q;                            /* Query used to generate the timeline */
  Blob sql;                          /* text of SQL used to generate timeline */
  Blob desc;                         /* Description of the timeline */