RFR: 8335267: [XWayland] move screencast tokens from .awt to .java folder [v2]

[Alexander Zvegintsev]

> Trivial fix to move the screencast token storage file from `~/.awt/robot/screencast-tokens.properties` to `~/.java/robot/screencast-tokens.properties`, where it should be.
> Old location is still valid and will only be used if there is a file in the old location and the new location does not have it.
> 
> Along with the fix  `@SuppressWarnings("removal")` is moved to individual items as it was done in [JFX](https://github.com/openjdk/jfx/pull/1490).

Alexander Zvegintsev has updated the pull request incrementally with one additional commit since the last revision:

  copy from secondary location

-------------

Changes:
  - all: https://git.openjdk.org/jdk/pull/20234/files
  - new: https://git.openjdk.org/jdk/pull/20234/files/3aabdb77..bc86dfb8

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=20234&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=20234&range=00-01

  Stats: 26 lines in 1 file changed: 10 ins; 0 del; 16 mod
  Patch: https://git.openjdk.org/jdk/pull/20234.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/20234/head:pull/20234

PR: https://git.openjdk.org/jdk/pull/20234