title: Move axis title towards plot and keep combmatrix labels
body: <p>I am trying to move the y axis title towards the ticks. However, I'm having trouble doing this without cutting off the combmatrix labels. I've tried both with <code>ggupset</code> and <code>ggplot</code> functions. See reprex below.</p>
  <p>Thank you for your help!</p>
  <pre class="lang-r prettyprint-override"><code>library(dplyr)
  library(ggupset)
  library(ggplot2)
  
  tidy_pathway_member &lt;- 
    gene_pathway_membership %&gt;%
    as_tibble(rownames = &quot;Pathway&quot;) %&gt;%
    tidyr::gather(Gene, Member, -Pathway) %&gt;%
    filter(Member) %&gt;%
    select(- Member)
  
  g &lt;-
    tidy_pathway_member %&gt;%
    group_by(Gene) %&gt;%
    summarize(Pathways = list(Pathway)) %&gt;%
    ggplot(aes(x = Pathways)) +
    geom_bar() +
    scale_x_upset()
  
  g
  </code></pre>
  <p><img src="https://i.imgur.com/moxih3S.png" alt="" /></p>
  <pre class="lang-r prettyprint-override"><code>g +
    # Moves axis title towards ticks...but cuts off labels
    theme_combmatrix(combmatrix.label.make_space = FALSE)
  </code></pre>
  <p><img src="https://i.imgur.com/L0PEF7i.png" alt="" /></p>
  <pre class="lang-r prettyprint-override"><code>g +
    # Also, moves axis title towards ticks...but cuts off labels
    theme(axis.title.y = element_text(margin = margin(r = -100)))
  </code></pre>
  <p><img src="https://i.imgur.com/jYUtkxC.png" alt="" /></p>
  <p><sup>Created on 2021-07-30 by the <a href="https://reprex.tidyverse.org" rel="nofollow noreferrer">reprex package</a> (v2.0.0)</sup></p>