:bug: Add tooltips for Priority and Preemption columns

[rszwajko]

Resolves: https://issues.redhat.com/browse/MTA-3235

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 42.19%. Comparing base (b654645) to head (e6e6cca). Report is 188 commits behind head on main.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #2005 +/- ## ========================================== + Coverage 39.20% 42.19% +2.99% ========================================== Files 146 171 +25 Lines 4857 5479 +622 Branches 1164 1309 +145 ========================================== + Hits 1904 2312 +408 - Misses 2939 3151 +212 - Partials 14 16 +2 ``` | [Flag](https://app.codecov.io/gh/konveyor/tackle2-ui/pull/2005/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=konveyor) | Coverage Δ | | |---|---|---| | [client](https://app.codecov.io/gh/konveyor/tackle2-ui/pull/2005/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=konveyor) | `42.19% <ø> (+2.99%)` | :arrow_up: | | [server](https://app.codecov.io/gh/konveyor/tackle2-ui/pull/2005/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=konveyor) | `?` | | Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=konveyor#carryforward-flags-in-the-pull-request-comment) to find out more.

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[rszwajko]