FluidContainer: Fix overlapping on pagination tab

[TheDarkStrix]

Fix : #7265

I have just extended the bottom padding , so that there is room for scrolling down to access the pagination tab.

Before :

After :

[codecov]

Codecov Report

Merging #7289 into master will decrease coverage by 0.00%.
The diff coverage is 0.00%.

@@            Coverage Diff             @@
##           master    #7289      +/-   ##
==========================================
- Coverage   26.17%   26.17%   -0.01%     
==========================================
  Files        1130     1130              
  Lines       15413    15414       +1     
  Branches     2439     2439              
==========================================
  Hits         4034     4034              
- Misses       9560     9561       +1     
  Partials     1819     1819              

Flag	Coverage Δ
#front	18.27% <0.00%> (-0.01%)	⬇️
#unit	52.96% <ø> (ø)

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Impacted Files	Coverage Δ
...admin/admin/src/components/ContainerFluid/index.js	66.66% <ø> (ø)
...min/src/containers/Onboarding/StaticLinks/index.js	0.00% <0.00%> (ø)
...ntent-manager/admin/src/components/Inputs/index.js	0.00% <0.00%> (ø)
...rapi-plugin-upload/admin/src/translations/index.js	0.00% <ø> (ø)

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[soupette]

LGTM

[imaksp]

@soupette Hi, I think this should be reviewed again, as it might add unnecessary scorll in admin with SHOW_TUTORIALS = false
https://strapi.io/documentation/v3.x/admin-panel/customization.html#development-mode

Also this pull request is not even fixing this issue, it is fixing if I edit padding in strapi-plugin-content-manager/admin/src/components/Container/index.js so this is not the correct file.

Changes made

[soupette]

LGTM