fixes for various browsers

Author: istefanis

index.html

@@ -412,18 +412,21 @@ <h5>User Guide</h5>
           <button
             class="element-analysis-window-header-button hidden"
             id="element-analysis-window-minimize-button"
+            title="Minimize window"
           >
             <i class="bi-arrows-collapse"></i>
           </button>
           <button
             class="element-analysis-window-header-button hidden"
             id="element-analysis-window-maximize-button"
+            title="Maximize window"
           >
             <i class="bi-arrows-expand"></i>
           </button>
           <button
             class="element-analysis-window-header-button"
             id="element-analysis-window-close-button"
+            title="Close window"
           >
             &times;
           </button>
@@ -511,7 +514,7 @@ <h5>User Guide</h5>
                       type="radio"
                       name="input-signal"
                       value="impulse"
-                      id="input-signal-impulse"
+                      id="input-signal-impulse-single-plot"
                       checked
                     />
                     <p>Impulse</p>
@@ -523,7 +526,7 @@ <h5>User Guide</h5>
                       type="radio"
                       name="input-signal"
                       value="step"
-                      id="input-signal-step"
+                      id="input-signal-step-single-plot"
                     />
                     <p>Step</p>
                   </label>
@@ -607,7 +610,7 @@ <h5>User Guide</h5>
                         type="radio"
                         name="input-signal"
                         value="impulse"
-                        id="input-signal-impulse"
+                        id="input-signal-impulse-multiple-plots"
                         checked
                       />
                       <p>Impulse</p>
@@ -619,7 +622,7 @@ <h5>User Guide</h5>
                         type="radio"
                         name="input-signal"
                         value="step"
-                        id="input-signal-step"
+                        id="input-signal-step-multiple-plots"
                       />
                       <p>Step</p>
                     </label>

view/style/element.css

@@ -14,6 +14,7 @@
   border-radius: 4px;
   touch-action: none;
   user-select: none;
+  -webkit-user-select: none;
   cursor: default;
 
   display: flex;

view/style/elementAnalysisWindow.css

@@ -43,6 +43,7 @@
 .element-analysis-window-header p {
   margin: 0 0 0 10px;
   user-select: none;
+  -webkit-user-select: none;
 }
 
 .element-analysis-window-header-button {

view/style/navbar.css

@@ -15,6 +15,7 @@
   z-index: 200;
   background-color: var(--color-grey-252);
   user-select: none;
+  -webkit-user-select: none;
 }
 
 .ribbon-section {

view/style/popupWindow.css

@@ -51,6 +51,7 @@
 .popup-window-header p {
   margin: 0 0 0 5px;
   user-select: none;
+  -webkit-user-select: none;
 }
 
 .popup-window-close-button {