[BUGFIX] TS Parser: Fix regression when having tabs in TS names

With the optimization of the TS parser (see #54856), it is not
possible to write TypoScript like this anymore:

config {
    baseUrl            = www.mywebsite.com
    tx_realurl_enable    = 1
}
The problem is that the TS parser is not allowing tabs
after the TS object name (baseUrl). The fix strips away
tabs after the TS object name.

Resolves: #55357
Releases: 6.2
Change-Id: I880267c2b512e50d6b9e47f469157ea5fd814180
Reviewed-on: https://review.typo3.org/27069
Reviewed-by: Michiel Roos
Tested-by: Michiel Roos
Reviewed-by: Wouter Wolters
Reviewed-by: Markus Klein
Tested-by: Markus Klein