Update Ubuntu PPA

src/app/installation/installation.component.html

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+<a name="installation">
+    <h2>Installation</h2>
+</a>
+<mat-tab-group>
+    <mat-tab label="Arch">
+        <pre><code>
+            yay -S safeeyes
+        </code></pre>
+        <pre><code>
+            packer -S safeeyes
+        </code></pre>
+    </mat-tab>
+    <mat-tab label="Debian">
+        <pre><code>
+          sudo apt-get install gir1.2-appindicator3-0.1 gir1.2-notify-0.7 python3-psutil python3-xlib xprintidle python3-pip
+          sudo pip3 install safeeyes
+          sudo update-icon-caches /usr/share/icons/hicolor
+      </code></pre>
+    </mat-tab>
+    <mat-tab label="Fedora">
+        If you want to use Smart Pause plugin, install the latest <code>xprintidle</code> from: <a href="https://copr.fedorainfracloud.org/coprs/alonid/xprintidle/">alonid/xprintidle</a>
+        <pre><code>
+          sudo dnf install libappindicator-gtk3 python3-psutil
+          sudo pip3 install safeeyes
+          sudo gtk-update-icon-cache /usr/share/icons/hicolor
+      </code></pre>
+    </mat-tab>
+    <mat-tab label="Gentoo">
+        <pre><code>
+          sudo emerge -av x11-misc/safeeyes
+      </code></pre>
+    </mat-tab>
+    <mat-tab label="Ubuntu &amp; Linux Mint">
+        <pre><code>
+          sudo add-apt-repository ppa:safeeyes-team/safeeyes
+          sudo apt update
+          sudo apt install safeeyes
+      </code></pre>
+    </mat-tab>
+    <mat-tab label="Other Linux">
+        Install the following dependencies:
+        <pre><code>
+        gir1.2-appindicator3-0.1 gir1.2-notify-0.7 libappindicator-gtk3 python3-psutil xprintidle
+    </code></pre> Install Safe Eyes:
+        <pre><code>
+        sudo pip3 install safeeyes
+    </code></pre>
+    </mat-tab>
+</mat-tab-group>