fix: Move Share button to the right and add 'Not now' button

[ShridharGoel]

Fixes #1419

Checklist:

• I have checked for PMD and check-style issues
• I have read the Contribution & Best practices Guide and my PR follows them.
• My branch is up-to-date with the Upstream development branch.

Changes:

Now the share button appears on the right side in the dialog box and a not now button has been added which closes the dialog.

Screenshots for the change:

[codecov]

Codecov Report

Merging #1422 into development will decrease coverage by 0.02%.
The diff coverage is 0%.

@@                Coverage Diff                @@
##             development    #1422      +/-   ##
=================================================
- Coverage          24.32%   24.29%   -0.03%     
  Complexity           757      757              
=================================================
  Files                237      237              
  Lines               8708     8718      +10     
  Branches             352      352              
=================================================
  Hits                2118     2118              
- Misses              6507     6517      +10     
  Partials              83       83

Impacted Files	Coverage Δ	Complexity Δ
...r/core/event/dashboard/EventDashboardFragment.java	0% <0%> (ø)	0 <0> (ø)	⬇️

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