add validator for step number to be an integer  below a threshold

add validator for a port mapping

display also same components as different steps in the workflow

initialize mermaid diagram since this is necessary even if it does
not carry any items

add new functions to get keys and values form parameters

add custom dashboard function for display of component versions

use user workdirectory instead of home directory as base when
picking the project path

the form for creating executions was completely refactored: it is
now able to have executions that have multiple steps that are
based on the same component version. Parameters can be loaded into
the form from files and then overwritten. The form recognizes its
state and the user can walk between steps with ease without losing
any previous inputs

in the execution table the order of the executions changed: the
newest executions come first now

this setting is needed in the dasboard to set a users base
directory

allow users to set a working directory that will be used as base
when reading files from the server

this will be used as starting point for users to set their
working directory on the dashboard

add two new function to get a collection back sorted by field
field values

extend existing function with an option to sort and the default
for this new argument is None

the new fuctions will be used to sort component versions and
executions

the new setting variable is not needed

adapt github repo validator to include more cases: this validator
returns errors and is used differently than other validators as
it should not run too often, just once after the user has finished
his input field entry

a new validator is added to check whether a path is already taken

in most cases this can be better done in the page code files
only where a write function is shared it is kept in the storage
helper

sort versions by components and tags

improve validation of component url when adding a new component

sort versions by components and then tags in the workflow
selection

improve storage handling

also add a button to create a new project directory