fix: DH-15864: Scroll position StuckToBottom shouldn't trigger sharing dot

[vbabich]

Reset isStuckToBottom and isStuckToRight in dropLayoutMinorChange.

The flags are still stored in the shared layout, but don't trigger the sharing dot.

Testing:

• Open a new dashboard, add a table with more rows than fits on the screen
• Share the dashboard layout with the table scrolled up, isStuckToBottom is false
• Scroll the table to the bottom, confirm the Sharing dot doesn't appear even though the isStuckToBottom flag is now set to true
• Click on the Sharing button, confirm the dialog shows the "Share updated state" message allowing to share the new isStuckToBottom state
• Scroll the table up a few rows to get it un-stuck, confirm the blue dot still doesn't show up. Open the Sharing dialog, confirm the "Share update state" message disappeared since the current isStuckToBottom state matches the shared state
• Scroll the table all the way down, discard the layout changes via the Sharing dialog, don't close the dialog. Confirm the table after discard is scrolled up (initial shared isStuckToBottom: false state restored).

[codecov]

Codecov Report

Attention: 2 lines in your changes are missing coverage. Please review.

Comparison is base (5977389) 46.72% compared to head (8e46304) 46.71%.
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1617      +/-   ##
==========================================
- Coverage   46.72%   46.71%   -0.01%     
==========================================
  Files         583      583              
  Lines       36312    36308       -4     
  Branches     9094     9094              
==========================================
- Hits        16965    16961       -4     
  Misses      19295    19295              
  Partials       52       52              

Flag	Coverage Δ
unit	46.71% <0.00%> (-0.01%)	⬇️

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Files	Coverage Δ
packages/dashboard/src/layout/LayoutUtils.ts	13.86% <0.00%> (-0.09%)	⬇️

... and 2 files with indirect coverage changes

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