storage: Put the minimum of a slider at the far left

[mvollmer]

Instead of always putting zero at the far left.

The previous code was written for a older version of the slider that could be restricted, and would not allow the user to slide below the minimum. Patternfly sliders can not be restricted in this way and will allow the user to slide the knob into every position. Thus, we need to make the far left the minimum to avoid confusion.

[jelly]

Slider tests fail:

    self.wait_js_cond("%s(%s)" % (func, ','.join(map(jsquote, args))))
  File "/work/bots/make-checkout-workdir/test/common/testlib.py", line 588, in wait_js_cond
    self.raise_cdp_exception("timeout\nwait_js_cond", cond, result["exceptionDetails"], trailer)
  File "/work/bots/make-checkout-workdir/test/common/testlib.py", line 292, in raise_cdp_exception
    raise Error("%s(%s): %s" % (func, arg, msg))
testlib.Error: timeout
wait_js_cond(ph_has_val("#dialog [data-field=\"size\"] .size-text input","27.3")): Uncaught (in promise) Error: condition did not become true

[jelly]

Code looks code, tests need fixing.

[mvollmer]

Code looks code, tests need fixing.

I have changed the code a bit as well, setting a "step" attribute that actually does something visible. The default is "1", which used to mean 1 percent, but now would mean 1 byte, which is too small.

[jelly]

Nice, thanks!