Fix all a11y issues

[rudolfs]

src/base/projects/History.svelte
91:              <!-- svelte-ignore a11y-click-events-have-key-events -->

src/Clipboard.svelte
41:<!-- svelte-ignore a11y-click-events-have-key-events -->

src/base/projects/Issues.svelte
77:        <!-- svelte-ignore a11y-click-events-have-key-events -->

src/base/projects/Patches.svelte
74:        <!-- svelte-ignore a11y-click-events-have-key-events -->

src/ColorPalette.svelte
167:  <!-- svelte-ignore a11y-click-events-have-key-events -->

src/base/projects/SourceBrowser/FileDiff.svelte
117:  <!-- svelte-ignore a11y-click-events-have-key-events -->

src/base/projects/Widget.svelte
112:<!-- svelte-ignore a11y-click-events-have-key-events -->

src/base/projects/Tree/File.svelte
49:<!-- svelte-ignore a11y-click-events-have-key-events -->

src/base/projects/Tree/Folder.svelte
64:<!-- svelte-ignore a11y-click-events-have-key-events -->

src/base/projects/Commit/CommitTeaser.svelte
103:    <!-- svelte-ignore a11y-click-events-have-key-events -->

src/base/projects/Commit/CommitVerifiedBadge.svelte
58:<!-- svelte-ignore a11y-click-events-have-key-events -->

src/ThemeToggle.svelte
50:<!-- svelte-ignore a11y-click-events-have-key-events -->

src/Dropdown.svelte
53:      <!-- svelte-ignore a11y-click-events-have-key-events -->

src/Icon.svelte
24:<!-- svelte-ignore a11y-click-events-have-key-events -->

src/Floating.svelte
55:  <!-- svelte-ignore a11y-click-events-have-key-events -->
65:      <!-- svelte-ignore a11y-click-events-have-key-events -->

src/ReactionSelector.svelte
54:    <!-- svelte-ignore a11y-click-events-have-key-events -->

Done src/Avatar.svelte:54 in f8ddbbf5daf5195c556218d591a1a5a64769175c src/base/projects/Header.svelte in 178d6230cbc0b49c63c93d3327dc9514e6b39c18