refactor: enhanced func timestampToRelativeTime

[uykukacinca]

Updated functions are more configurable and feature-rich while maintaining the same core functionality. It allows for more precise time displays and better customization options through data attributes.

Major Changes

Time Unit Definition:
Consolidated array TIME_UNITS with tuples of [label, seconds]

Enhanced function timestampToRelativeTime:

• Added support for multiple units via units parameter
• Added relative parameter to toggle "ago"/"in" text
• More flexible output format combining multiple units
• Added validation for invalid timestamps

Updated function updateRelativeTimeForElements:

• Added support for custom units via data-units attribute
• Added relative time display via data-show-relative attribute
• Performance optimization: only updates if content changed

Update Interval:
Old: 60 seconds (60 * 1000)
New: 1 seconds (1 * 1000)

Examples

<span data-dynamic-relative-time="1764472280">
  8mo
<span data-dynamic-relative-time="1764472280" data-show-relative="true">
  in 8mo
<span data-dynamic-relative-time="1764472280" data-units="2" data-show-relative="true">
  in 8mo 10d
<span data-dynamic-relative-time="1805893973" data-units="6" data-show-relative="true">
  in 1y 12mo 4d 22h 25m 29s

<span data-dynamic-relative-time="1719273224">
  9mo
<span data-dynamic-relative-time="1719273224" data-show-relative="true">
  9mo ago
<span data-dynamic-relative-time="1719273224" data-units="2" data-show-relative="true">
  9mo 2d ago
<span data-dynamic-relative-time="1679663573" data-units="6" data-show-relative="true">
  2y 1d 1h 34m 31s ago