Support Colon for Bulk Edit

[delasource]

The Bulk Edit toggle on the "App Configs" page is broken since forever.

Adding text in Bulk-mode and then toggling back, all "invalid" parameters are removed. As i can tell, "invalid" are lines with a :, ; or multiple = signs.

Which is kinda buggy. Adding them in single-entry mode works and that is good. Example:

Twitch:ClientId=aaaaaaa

is a valid entry (working with a dotnet project), but is removed by caprover when added in bulk mode.

Please fix, thanks.

# uname -a && lsb_release -a && free -h
Linux app 5.10.0-26-amd64 #1 SMP Debian 5.10.197-1 (2023-09-29) x86_64 GNU/Linux
No LSB modules are available.
Distributor ID: Debian
Description:    Debian GNU/Linux 11 (bullseye)
Release:        11
Codename:       bullseye
               total        used        free      shared  buff/cache   available
Mem:            15Gi       8.5Gi       504Mi       371Mi       6.3Gi       6.2Gi
Swap:             0B          0B          0B

[githubsaturn]

Colons are non-standard values in bash AFAIK. You can try this in any bash environment.

[githubsaturn]

Also, just to confirm it's intentionally blocked by the upstream library:
motdotla/dotenv#460 (comment)

[delasource]

Adding values with colons in single-entry mode does work, so it is probably not that seriously of an "intentional block". Caprover should be consistent then; if blocking it in bulk mode then also block it in single-entry mode. (but i wish it would be the other way around)

i found out, that one can also use double underscores instead of colons for nesting appsettings in dotnet. That works better.