#810: added warning message to setup

[hohwille]

fixes #810

added warning message to setup explaining that a new shell needs to be started to use IDEasy:

$ unset -f ide
$ rm /d/projects/_ide/bin/ide
$ ide help
bash: /d/projects/_ide/bin/ide: No such file or directory
$ source setup
Setting up IDEasy in /d/projects/_ide
Configuring IDEasy in /c/Users/hohwille/.bashrc.
Configuring IDEasy in /c/Users/hohwille/.zshrc.
ATTENTION: IDEasy has been setup for your shells but you need to start a new shell to make it work.
Only if you invoked this setup script by sourcing it, you are able to run 'ide' and 'icd' commands without starting a new shell.
$ ide help
__       ___ ___  ___
\ \     |_ _|   \| __|__ _ ____ _
 > >     | || |) | _|/ _` (_-< || |
/_/ ___ |___|___/|___\__,_/__/\_, |
   |___|                       |__/

Current version of IDE is 2024.12.001-beta-SNAPSHOT
...

[coveralls]

Pull Request Test Coverage Report for Build 12074212125

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 67.417%

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Totals
Change from base Build 12073943517:	0.0%
Covered Lines:	6511
Relevant Lines:	9316

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💛 - Coveralls