fix(kit): fix calendar range presets filtration

[bondarvladislave]

Summary
I need to add a preset for the calendar: "Previous Period". This preset ensures that the selected period has the same length and directly precedes the current selection.

For example:

• If the selected range is 14–15, the preset will suggest 12–13.
• If the selected range is 10–15 (length 6), the preset will suggest 4–9.

Implementation Details
Ensures that the previous period matches the minLength and maxLength of the current selection.
Adjusts the range so the new period is directly adjacent to the current selection, maintaining its exact length.

Issue
https://stackblitz.com/edit/angular-ckrt12?file=src%2Fapp%2Fapp.component.ts,src%2Fapp%2Fapp.template.html
In the example at the link, the dates are different; it will always be Today - 2 days.
The length ends up being 3 days inclusive.
The preset will be:
from: today - (3 + 2) and to: today - 3

The library's filtering logic rejects the preset dates in some cases.

However, I can select these dates manually, and in that case, the preset label is applied to the input.

For example:
When the selected range is 14–15, the preset suggests 12–13.
minLength = 2, but 12 + 2 = 14.
The library's mapper treats this as invalid because 14 does not satisfy daySameOrBefore with the "to" date, which is day 15.

Proposed Fix
In the filtering logic, it seems necessary to include an adjustment like append({ day: -1 }) to correctly validate the preset's range.

[lumberjack-bot]

Pull request was closed ✔️

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[bundlemon]

BundleMon

Unchanged files (5)

Status	Path	Size	Limits
✅	demo/browser/main.(hash).js	304.37KB	+10%
✅	demo/browser/vendor.(hash).js	260.09KB	+10%
✅	demo/browser/runtime.(hash).js	44.03KB	+10%
✅	demo/browser/styles.(hash).css	19.63KB	+10%
✅	demo/browser/polyfills.(hash).js	11.18KB	+10%

Total files change +2B 0%

Unchanged groups (1)

Status	Path	Size	Limits
✅	demo/browser/*..js	7.34MB	-

Final result: ✅

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